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Finding the Fourth Proportional to 8,720.97, 11,873.93 and 8,693.29

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Solution

The fourth proportional to 8,720.97, 11,873.93 and 8,693.29 is: 11,836.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.97 : 11,873.93 = 8,693.29 : x
  2. Step 2: Convert to fraction form
    8,720.97/11,873.93 = 8,693.29/x
  3. Step 3: Cross multiply
    8,720.97x = 11,873.93 × 8,693.29
  4. Step 4: Simplify right side
    8,720.97x = 103,223,516.93
  5. Step 5: Solve for x
    x = 103,223,516.93/8,720.97
  6. Step 6: Final answer
    x = 11,836.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.