Home / 12,331.60-18,499.20-4,539.76

Finding the Fourth Proportional to 12,331.60, 18,499.20 and 4,539.76

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Solution

The fourth proportional to 12,331.60, 18,499.20 and 4,539.76 is: 6,810.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,331.60 : 18,499.20 = 4,539.76 : x
  2. Step 2: Convert to fraction form
    12,331.60/18,499.20 = 4,539.76/x
  3. Step 3: Cross multiply
    12,331.60x = 18,499.20 × 4,539.76
  4. Step 4: Simplify right side
    12,331.60x = 83,981,928.19
  5. Step 5: Solve for x
    x = 83,981,928.19/12,331.60
  6. Step 6: Final answer
    x = 6,810.30

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1.5x scale

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.