Home / 8,742.39-13,102.05-3,545.43

Finding the Fourth Proportional to 8,742.39, 13,102.05 and 3,545.43

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Solution

The fourth proportional to 8,742.39, 13,102.05 and 3,545.43 is: 5,313.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.39 : 13,102.05 = 3,545.43 : x
  2. Step 2: Convert to fraction form
    8,742.39/13,102.05 = 3,545.43/x
  3. Step 3: Cross multiply
    8,742.39x = 13,102.05 × 3,545.43
  4. Step 4: Simplify right side
    8,742.39x = 46,452,401.13
  5. Step 5: Solve for x
    x = 46,452,401.13/8,742.39
  6. Step 6: Final answer
    x = 5,313.47

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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.