Home / 18,660.48-27,989.76-9,426.24

Finding the Fourth Proportional to 18,660.48, 27,989.76 and 9,426.24

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Solution

The fourth proportional to 18,660.48, 27,989.76 and 9,426.24 is: 14,138.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660.48 : 27,989.76 = 9,426.24 : x
  2. Step 2: Convert to fraction form
    18,660.48/27,989.76 = 9,426.24/x
  3. Step 3: Cross multiply
    18,660.48x = 27,989.76 × 9,426.24
  4. Step 4: Simplify right side
    18,660.48x = 263,838,195.30
  5. Step 5: Solve for x
    x = 263,838,195.30/18,660.48
  6. Step 6: Final answer
    x = 14,138.88

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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.