Home / 14,789.18-20,404.16-9,755.90

Finding the Fourth Proportional to 14,789.18, 20,404.16 and 9,755.90

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Solution

The fourth proportional to 14,789.18, 20,404.16 and 9,755.90 is: 13,459.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,789.18 : 20,404.16 = 9,755.90 : x
  2. Step 2: Convert to fraction form
    14,789.18/20,404.16 = 9,755.90/x
  3. Step 3: Cross multiply
    14,789.18x = 20,404.16 × 9,755.90
  4. Step 4: Simplify right side
    14,789.18x = 199,060,944.54
  5. Step 5: Solve for x
    x = 199,060,944.54/14,789.18
  6. Step 6: Final answer
    x = 13,459.90

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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.