Home / 18,658.04-27,990.76-5,331.16

Finding the Fourth Proportional to 18,658.04, 27,990.76 and 5,331.16

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Solution

The fourth proportional to 18,658.04, 27,990.76 and 5,331.16 is: 7,997.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,658.04 : 27,990.76 = 5,331.16 : x
  2. Step 2: Convert to fraction form
    18,658.04/27,990.76 = 5,331.16/x
  3. Step 3: Cross multiply
    18,658.04x = 27,990.76 × 5,331.16
  4. Step 4: Simplify right side
    18,658.04x = 149,223,158.02
  5. Step 5: Solve for x
    x = 149,223,158.02/18,658.04
  6. Step 6: Final answer
    x = 7,997.79

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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.