Home / 12,253.60-18,380.64-3,488.74

Finding the Fourth Proportional to 12,253.60, 18,380.64 and 3,488.74

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Solution

The fourth proportional to 12,253.60, 18,380.64 and 3,488.74 is: 5,233.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253.60 : 18,380.64 = 3,488.74 : x
  2. Step 2: Convert to fraction form
    12,253.60/18,380.64 = 3,488.74/x
  3. Step 3: Cross multiply
    12,253.60x = 18,380.64 × 3,488.74
  4. Step 4: Simplify right side
    12,253.60x = 64,125,273.99
  5. Step 5: Solve for x
    x = 64,125,273.99/12,253.60
  6. Step 6: Final answer
    x = 5,233.18

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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.