Home / 16,691.76-23,027.96-9,977.60

Finding the Fourth Proportional to 16,691.76, 23,027.96 and 9,977.60

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Solution

The fourth proportional to 16,691.76, 23,027.96 and 9,977.60 is: 13,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,691.76 : 23,027.96 = 9,977.60 : x
  2. Step 2: Convert to fraction form
    16,691.76/23,027.96 = 9,977.60/x
  3. Step 3: Cross multiply
    16,691.76x = 23,027.96 × 9,977.60
  4. Step 4: Simplify right side
    16,691.76x = 229,763,773.70
  5. Step 5: Solve for x
    x = 229,763,773.70/16,691.76
  6. Step 6: Final answer
    x = 13,765.10

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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.