Home / 8,851.57-12,215.10-4,872.75

Finding the Fourth Proportional to 8,851.57, 12,215.10 and 4,872.75

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Solution

The fourth proportional to 8,851.57, 12,215.10 and 4,872.75 is: 6,724.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,851.57 : 12,215.10 = 4,872.75 : x
  2. Step 2: Convert to fraction form
    8,851.57/12,215.10 = 4,872.75/x
  3. Step 3: Cross multiply
    8,851.57x = 12,215.10 × 4,872.75
  4. Step 4: Simplify right side
    8,851.57x = 59,521,128.53
  5. Step 5: Solve for x
    x = 59,521,128.53/8,851.57
  6. Step 6: Final answer
    x = 6,724.36

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.