Home / 12,191.04-18,350.64-9,305.28

Finding the Fourth Proportional to 12,191.04, 18,350.64 and 9,305.28

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Solution

The fourth proportional to 12,191.04, 18,350.64 and 9,305.28 is: 14,006.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191.04 : 18,350.64 = 9,305.28 : x
  2. Step 2: Convert to fraction form
    12,191.04/18,350.64 = 9,305.28/x
  3. Step 3: Cross multiply
    12,191.04x = 18,350.64 × 9,305.28
  4. Step 4: Simplify right side
    12,191.04x = 170,757,843.38
  5. Step 5: Solve for x
    x = 170,757,843.38/12,191.04
  6. Step 6: Final answer
    x = 14,006.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.