Home / 16,189.04-22,338.40-9,115.28

Finding the Fourth Proportional to 16,189.04, 22,338.40 and 9,115.28

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Solution

The fourth proportional to 16,189.04, 22,338.40 and 9,115.28 is: 12,577.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,189.04 : 22,338.40 = 9,115.28 : x
  2. Step 2: Convert to fraction form
    16,189.04/22,338.40 = 9,115.28/x
  3. Step 3: Cross multiply
    16,189.04x = 22,338.40 × 9,115.28
  4. Step 4: Simplify right side
    16,189.04x = 203,620,770.75
  5. Step 5: Solve for x
    x = 203,620,770.75/16,189.04
  6. Step 6: Final answer
    x = 12,577.69

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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.