Home / 12,412.26-18,624.47-9,139.97

Finding the Fourth Proportional to 12,412.26, 18,624.47 and 9,139.97

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Solution

The fourth proportional to 12,412.26, 18,624.47 and 9,139.97 is: 13,714.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,412.26 : 18,624.47 = 9,139.97 : x
  2. Step 2: Convert to fraction form
    12,412.26/18,624.47 = 9,139.97/x
  3. Step 3: Cross multiply
    12,412.26x = 18,624.47 × 9,139.97
  4. Step 4: Simplify right side
    12,412.26x = 170,227,097.93
  5. Step 5: Solve for x
    x = 170,227,097.93/12,412.26
  6. Step 6: Final answer
    x = 13,714.43

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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.