Home / 8,938.85-13,412.82-3,677.90

Finding the Fourth Proportional to 8,938.85, 13,412.82 and 3,677.90

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Solution

The fourth proportional to 8,938.85, 13,412.82 and 3,677.90 is: 5,518.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.85 : 13,412.82 = 3,677.90 : x
  2. Step 2: Convert to fraction form
    8,938.85/13,412.82 = 3,677.90/x
  3. Step 3: Cross multiply
    8,938.85x = 13,412.82 × 3,677.90
  4. Step 4: Simplify right side
    8,938.85x = 49,330,943.61
  5. Step 5: Solve for x
    x = 49,330,943.61/8,938.85
  6. Step 6: Final answer
    x = 5,518.72

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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.