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Finding the Fourth Proportional to 8,531.16, 12,781.62 and 5,929.08

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Solution

The fourth proportional to 8,531.16, 12,781.62 and 5,929.08 is: 8,883.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.16 : 12,781.62 = 5,929.08 : x
  2. Step 2: Convert to fraction form
    8,531.16/12,781.62 = 5,929.08/x
  3. Step 3: Cross multiply
    8,531.16x = 12,781.62 × 5,929.08
  4. Step 4: Simplify right side
    8,531.16x = 75,783,247.51
  5. Step 5: Solve for x
    x = 75,783,247.51/8,531.16
  6. Step 6: Final answer
    x = 8,883.11

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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.