Home / 8,472.38-12,708.56-2,316.38

Finding the Fourth Proportional to 8,472.38, 12,708.56 and 2,316.38

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Solution

The fourth proportional to 8,472.38, 12,708.56 and 2,316.38 is: 3,474.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.38 : 12,708.56 = 2,316.38 : x
  2. Step 2: Convert to fraction form
    8,472.38/12,708.56 = 2,316.38/x
  3. Step 3: Cross multiply
    8,472.38x = 12,708.56 × 2,316.38
  4. Step 4: Simplify right side
    8,472.38x = 29,437,796.46
  5. Step 5: Solve for x
    x = 29,437,796.46/8,472.38
  6. Step 6: Final answer
    x = 3,474.56

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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.