Home / 13,248.40-19,872.54-3,387.66

Finding the Fourth Proportional to 13,248.40, 19,872.54 and 3,387.66

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Solution

The fourth proportional to 13,248.40, 19,872.54 and 3,387.66 is: 5,081.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.40 : 19,872.54 = 3,387.66 : x
  2. Step 2: Convert to fraction form
    13,248.40/19,872.54 = 3,387.66/x
  3. Step 3: Cross multiply
    13,248.40x = 19,872.54 × 3,387.66
  4. Step 4: Simplify right side
    13,248.40x = 67,321,408.86
  5. Step 5: Solve for x
    x = 67,321,408.86/13,248.40
  6. Step 6: Final answer
    x = 5,081.47

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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.