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Finding the Fourth Proportional to 8,269.70, 12,404.55 and 7,636.10

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Solution

The fourth proportional to 8,269.70, 12,404.55 and 7,636.10 is: 11,454.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,269.70 : 12,404.55 = 7,636.10 : x
  2. Step 2: Convert to fraction form
    8,269.70/12,404.55 = 7,636.10/x
  3. Step 3: Cross multiply
    8,269.70x = 12,404.55 × 7,636.10
  4. Step 4: Simplify right side
    8,269.70x = 94,722,384.26
  5. Step 5: Solve for x
    x = 94,722,384.26/8,269.70
  6. Step 6: Final answer
    x = 11,454.15

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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.