Home / 12,253.71-18,380.56-3,488.63

Finding the Fourth Proportional to 12,253.71, 18,380.56 and 3,488.63

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Solution

The fourth proportional to 12,253.71, 18,380.56 and 3,488.63 is: 5,232.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253.71 : 18,380.56 = 3,488.63 : x
  2. Step 2: Convert to fraction form
    12,253.71/18,380.56 = 3,488.63/x
  3. Step 3: Cross multiply
    12,253.71x = 18,380.56 × 3,488.63
  4. Step 4: Simplify right side
    12,253.71x = 64,122,909.04
  5. Step 5: Solve for x
    x = 64,122,909.04/12,253.71
  6. Step 6: Final answer
    x = 5,232.94

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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.