Home / 8,091,384.10-12,137,076.15-7,279,569.70

Finding the Fourth Proportional to 8,091,384.10, 12,137,076.15 and 7,279,569.70

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Solution

The fourth proportional to 8,091,384.10, 12,137,076.15 and 7,279,569.70 is: 10,919,354.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,091,384.10 : 12,137,076.15 = 7,279,569.70 : x
  2. Step 2: Convert to fraction form
    8,091,384.10/12,137,076.15 = 7,279,569.70/x
  3. Step 3: Cross multiply
    8,091,384.10x = 12,137,076.15 × 7,279,569.70
  4. Step 4: Simplify right side
    8,091,384.10x = 88,352,691,788,132.66
  5. Step 5: Solve for x
    x = 88,352,691,788,132.66/8,091,384.10
  6. Step 6: Final answer
    x = 10,919,354.55

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.