Home / 11,139.60-16,708.68-3,743.40

Finding the Fourth Proportional to 11,139.60, 16,708.68 and 3,743.40

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Solution

The fourth proportional to 11,139.60, 16,708.68 and 3,743.40 is: 5,614.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.60 : 16,708.68 = 3,743.40 : x
  2. Step 2: Convert to fraction form
    11,139.60/16,708.68 = 3,743.40/x
  3. Step 3: Cross multiply
    11,139.60x = 16,708.68 × 3,743.40
  4. Step 4: Simplify right side
    11,139.60x = 62,547,272.71
  5. Step 5: Solve for x
    x = 62,547,272.71/11,139.60
  6. Step 6: Final answer
    x = 5,614.86

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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.