Home / 9,129.39-13,684.05-3,581.70

Finding the Fourth Proportional to 9,129.39, 13,684.05 and 3,581.70

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Solution

The fourth proportional to 9,129.39, 13,684.05 and 3,581.70 is: 5,368.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.39 : 13,684.05 = 3,581.70 : x
  2. Step 2: Convert to fraction form
    9,129.39/13,684.05 = 3,581.70/x
  3. Step 3: Cross multiply
    9,129.39x = 13,684.05 × 3,581.70
  4. Step 4: Simplify right side
    9,129.39x = 49,012,161.89
  5. Step 5: Solve for x
    x = 49,012,161.89/9,129.39
  6. Step 6: Final answer
    x = 5,368.61

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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.