Home / 10,472.16-15,683.31-8,520.06

Finding the Fourth Proportional to 10,472.16, 15,683.31 and 8,520.06

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Solution

The fourth proportional to 10,472.16, 15,683.31 and 8,520.06 is: 12,759.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,472.16 : 15,683.31 = 8,520.06 : x
  2. Step 2: Convert to fraction form
    10,472.16/15,683.31 = 8,520.06/x
  3. Step 3: Cross multiply
    10,472.16x = 15,683.31 × 8,520.06
  4. Step 4: Simplify right side
    10,472.16x = 133,622,742.20
  5. Step 5: Solve for x
    x = 133,622,742.20/10,472.16
  6. Step 6: Final answer
    x = 12,759.81

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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.