Home / 12,447.48-18,671.28-4,654.56

Finding the Fourth Proportional to 12,447.48, 18,671.28 and 4,654.56

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Solution

The fourth proportional to 12,447.48, 18,671.28 and 4,654.56 is: 6,981.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447.48 : 18,671.28 = 4,654.56 : x
  2. Step 2: Convert to fraction form
    12,447.48/18,671.28 = 4,654.56/x
  3. Step 3: Cross multiply
    12,447.48x = 18,671.28 × 4,654.56
  4. Step 4: Simplify right side
    12,447.48x = 86,906,593.04
  5. Step 5: Solve for x
    x = 86,906,593.04/12,447.48
  6. Step 6: Final answer
    x = 6,981.86

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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.