Home / 13,614.56-18,790.12-8,312.46

Finding the Fourth Proportional to 13,614.56, 18,790.12 and 8,312.46

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Solution

The fourth proportional to 13,614.56, 18,790.12 and 8,312.46 is: 11,472.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.56 : 18,790.12 = 8,312.46 : x
  2. Step 2: Convert to fraction form
    13,614.56/18,790.12 = 8,312.46/x
  3. Step 3: Cross multiply
    13,614.56x = 18,790.12 × 8,312.46
  4. Step 4: Simplify right side
    13,614.56x = 156,192,120.90
  5. Step 5: Solve for x
    x = 156,192,120.90/13,614.56
  6. Step 6: Final answer
    x = 11,472.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.