Home / 8,949.90-13,429.14-3,688.74

Finding the Fourth Proportional to 8,949.90, 13,429.14 and 3,688.74

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Solution

The fourth proportional to 8,949.90, 13,429.14 and 3,688.74 is: 5,534.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,949.90 : 13,429.14 = 3,688.74 : x
  2. Step 2: Convert to fraction form
    8,949.90/13,429.14 = 3,688.74/x
  3. Step 3: Cross multiply
    8,949.90x = 13,429.14 × 3,688.74
  4. Step 4: Simplify right side
    8,949.90x = 49,536,605.88
  5. Step 5: Solve for x
    x = 49,536,605.88/8,949.90
  6. Step 6: Final answer
    x = 5,534.88

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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.