Home / 10,534.38-15,724.74-9,717.90

Finding the Fourth Proportional to 10,534.38, 15,724.74 and 9,717.90

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Solution

The fourth proportional to 10,534.38, 15,724.74 and 9,717.90 is: 14,505.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,534.38 : 15,724.74 = 9,717.90 : x
  2. Step 2: Convert to fraction form
    10,534.38/15,724.74 = 9,717.90/x
  3. Step 3: Cross multiply
    10,534.38x = 15,724.74 × 9,717.90
  4. Step 4: Simplify right side
    10,534.38x = 152,811,450.85
  5. Step 5: Solve for x
    x = 152,811,450.85/10,534.38
  6. Step 6: Final answer
    x = 14,505.97

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.