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Finding the Fourth Proportional to 8,935.38, 13,403.07 and 6,121.44

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Solution

The fourth proportional to 8,935.38, 13,403.07 and 6,121.44 is: 9,182.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,935.38 : 13,403.07 = 6,121.44 : x
  2. Step 2: Convert to fraction form
    8,935.38/13,403.07 = 6,121.44/x
  3. Step 3: Cross multiply
    8,935.38x = 13,403.07 × 6,121.44
  4. Step 4: Simplify right side
    8,935.38x = 82,046,088.82
  5. Step 5: Solve for x
    x = 82,046,088.82/8,935.38
  6. Step 6: Final answer
    x = 9,182.16

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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.