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Finding the Fourth Proportional to 9,572.34, 14,387.79 and 7,939.38

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Solution

The fourth proportional to 9,572.34, 14,387.79 and 7,939.38 is: 11,933.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,572.34 : 14,387.79 = 7,939.38 : x
  2. Step 2: Convert to fraction form
    9,572.34/14,387.79 = 7,939.38/x
  3. Step 3: Cross multiply
    9,572.34x = 14,387.79 × 7,939.38
  4. Step 4: Simplify right side
    9,572.34x = 114,230,132.17
  5. Step 5: Solve for x
    x = 114,230,132.17/9,572.34
  6. Step 6: Final answer
    x = 11,933.36

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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.