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Finding the Fourth Proportional to 7,601.29, 11,402.39 and 7,187.58

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Solution

The fourth proportional to 7,601.29, 11,402.39 and 7,187.58 is: 10,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,601.29 : 11,402.39 = 7,187.58 : x
  2. Step 2: Convert to fraction form
    7,601.29/11,402.39 = 7,187.58/x
  3. Step 3: Cross multiply
    7,601.29x = 11,402.39 × 7,187.58
  4. Step 4: Simplify right side
    7,601.29x = 81,955,554.38
  5. Step 5: Solve for x
    x = 81,955,554.38/7,601.29
  6. Step 6: Final answer
    x = 10,781.80

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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.