Home / 9,938.28-14,909.88-3,012.78

Finding the Fourth Proportional to 9,938.28, 14,909.88 and 3,012.78

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Solution

The fourth proportional to 9,938.28, 14,909.88 and 3,012.78 is: 4,519.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,938.28 : 14,909.88 = 3,012.78 : x
  2. Step 2: Convert to fraction form
    9,938.28/14,909.88 = 3,012.78/x
  3. Step 3: Cross multiply
    9,938.28x = 14,909.88 × 3,012.78
  4. Step 4: Simplify right side
    9,938.28x = 44,920,188.27
  5. Step 5: Solve for x
    x = 44,920,188.27/9,938.28
  6. Step 6: Final answer
    x = 4,519.92

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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.