Home / 15,084.88-20,817.96-9,116.52

Finding the Fourth Proportional to 15,084.88, 20,817.96 and 9,116.52

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Solution

The fourth proportional to 15,084.88, 20,817.96 and 9,116.52 is: 12,581.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,084.88 : 20,817.96 = 9,116.52 : x
  2. Step 2: Convert to fraction form
    15,084.88/20,817.96 = 9,116.52/x
  3. Step 3: Cross multiply
    15,084.88x = 20,817.96 × 9,116.52
  4. Step 4: Simplify right side
    15,084.88x = 189,787,348.70
  5. Step 5: Solve for x
    x = 189,787,348.70/15,084.88
  6. Step 6: Final answer
    x = 12,581.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.