Home / 16,731.20-23,087.39-9,659.90

Finding the Fourth Proportional to 16,731.20, 23,087.39 and 9,659.90

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Solution

The fourth proportional to 16,731.20, 23,087.39 and 9,659.90 is: 13,329.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,731.20 : 23,087.39 = 9,659.90 : x
  2. Step 2: Convert to fraction form
    16,731.20/23,087.39 = 9,659.90/x
  3. Step 3: Cross multiply
    16,731.20x = 23,087.39 × 9,659.90
  4. Step 4: Simplify right side
    16,731.20x = 223,021,888.08
  5. Step 5: Solve for x
    x = 223,021,888.08/16,731.20
  6. Step 6: Final answer
    x = 13,329.70

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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.