Home / 14,487.13-19,990.80-8,520.27

Finding the Fourth Proportional to 14,487.13, 19,990.80 and 8,520.27

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Solution

The fourth proportional to 14,487.13, 19,990.80 and 8,520.27 is: 11,757.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,487.13 : 19,990.80 = 8,520.27 : x
  2. Step 2: Convert to fraction form
    14,487.13/19,990.80 = 8,520.27/x
  3. Step 3: Cross multiply
    14,487.13x = 19,990.80 × 8,520.27
  4. Step 4: Simplify right side
    14,487.13x = 170,327,013.52
  5. Step 5: Solve for x
    x = 170,327,013.52/14,487.13
  6. Step 6: Final answer
    x = 11,757.13

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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.