Home / 8,742.68-13,117.89-4,581.69

Finding the Fourth Proportional to 8,742.68, 13,117.89 and 4,581.69

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Solution

The fourth proportional to 8,742.68, 13,117.89 and 4,581.69 is: 6,874.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.68 : 13,117.89 = 4,581.69 : x
  2. Step 2: Convert to fraction form
    8,742.68/13,117.89 = 4,581.69/x
  3. Step 3: Cross multiply
    8,742.68x = 13,117.89 × 4,581.69
  4. Step 4: Simplify right side
    8,742.68x = 60,102,146.04
  5. Step 5: Solve for x
    x = 60,102,146.04/8,742.68
  6. Step 6: Final answer
    x = 6,874.57

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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.