Home / 10,472.15-15,708.58-5,275.19

Finding the Fourth Proportional to 10,472.15, 15,708.58 and 5,275.19

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Solution

The fourth proportional to 10,472.15, 15,708.58 and 5,275.19 is: 7,912.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,472.15 : 15,708.58 = 5,275.19 : x
  2. Step 2: Convert to fraction form
    10,472.15/15,708.58 = 5,275.19/x
  3. Step 3: Cross multiply
    10,472.15x = 15,708.58 × 5,275.19
  4. Step 4: Simplify right side
    10,472.15x = 82,865,665.59
  5. Step 5: Solve for x
    x = 82,865,665.59/10,472.15
  6. Step 6: Final answer
    x = 7,912.96

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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.