Home / 12,357,074.80-18,535,612.20-11,517,266.80

Finding the Fourth Proportional to 12,357,074.80, 18,535,612.20 and 11,517,266.80

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Solution

The fourth proportional to 12,357,074.80, 18,535,612.20 and 11,517,266.80 is: 17,275,900.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357,074.80 : 18,535,612.20 = 11,517,266.80 : x
  2. Step 2: Convert to fraction form
    12,357,074.80/18,535,612.20 = 11,517,266.80/x
  3. Step 3: Cross multiply
    12,357,074.80x = 18,535,612.20 × 11,517,266.80
  4. Step 4: Simplify right side
    12,357,074.80x = 213,479,591,008,734.97
  5. Step 5: Solve for x
    x = 213,479,591,008,734.97/12,357,074.80
  6. Step 6: Final answer
    x = 17,275,900.20

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Similar ratio
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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.