Home / 18,439.12-27,663.54-9,671.68

Finding the Fourth Proportional to 18,439.12, 27,663.54 and 9,671.68

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Solution

The fourth proportional to 18,439.12, 27,663.54 and 9,671.68 is: 14,510.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,439.12 : 27,663.54 = 9,671.68 : x
  2. Step 2: Convert to fraction form
    18,439.12/27,663.54 = 9,671.68/x
  3. Step 3: Cross multiply
    18,439.12x = 27,663.54 × 9,671.68
  4. Step 4: Simplify right side
    18,439.12x = 267,552,906.55
  5. Step 5: Solve for x
    x = 267,552,906.55/18,439.12
  6. Step 6: Final answer
    x = 14,510.07

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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.