Home / 14,949.20-20,620.90-9,572.80

Finding the Fourth Proportional to 14,949.20, 20,620.90 and 9,572.80

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Solution

The fourth proportional to 14,949.20, 20,620.90 and 9,572.80 is: 13,204.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,949.20 : 20,620.90 = 9,572.80 : x
  2. Step 2: Convert to fraction form
    14,949.20/20,620.90 = 9,572.80/x
  3. Step 3: Cross multiply
    14,949.20x = 20,620.90 × 9,572.80
  4. Step 4: Simplify right side
    14,949.20x = 197,399,751.52
  5. Step 5: Solve for x
    x = 197,399,751.52/14,949.20
  6. Step 6: Final answer
    x = 13,204.70

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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.