Home / 16,686.20-23,027.29-9,972.11

Finding the Fourth Proportional to 16,686.20, 23,027.29 and 9,972.11

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Solution

The fourth proportional to 16,686.20, 23,027.29 and 9,972.11 is: 13,761.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,686.20 : 23,027.29 = 9,972.11 : x
  2. Step 2: Convert to fraction form
    16,686.20/23,027.29 = 9,972.11/x
  3. Step 3: Cross multiply
    16,686.20x = 23,027.29 × 9,972.11
  4. Step 4: Simplify right side
    16,686.20x = 229,630,701.52
  5. Step 5: Solve for x
    x = 229,630,701.52/16,686.20
  6. Step 6: Final answer
    x = 13,761.71

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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.