Home / 12,251.28-18,387.59-6,996.81

Finding the Fourth Proportional to 12,251.28, 18,387.59 and 6,996.81

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Solution

The fourth proportional to 12,251.28, 18,387.59 and 6,996.81 is: 10,501.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251.28 : 18,387.59 = 6,996.81 : x
  2. Step 2: Convert to fraction form
    12,251.28/18,387.59 = 6,996.81/x
  3. Step 3: Cross multiply
    12,251.28x = 18,387.59 × 6,996.81
  4. Step 4: Simplify right side
    12,251.28x = 128,654,473.59
  5. Step 5: Solve for x
    x = 128,654,473.59/12,251.28
  6. Step 6: Final answer
    x = 10,501.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.