Home / 18,000.90-27,002.40-5,521.05

Finding the Fourth Proportional to 18,000.90, 27,002.40 and 5,521.05

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Solution

The fourth proportional to 18,000.90, 27,002.40 and 5,521.05 is: 8,281.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,000.90 : 27,002.40 = 5,521.05 : x
  2. Step 2: Convert to fraction form
    18,000.90/27,002.40 = 5,521.05/x
  3. Step 3: Cross multiply
    18,000.90x = 27,002.40 × 5,521.05
  4. Step 4: Simplify right side
    18,000.90x = 149,081,600.52
  5. Step 5: Solve for x
    x = 149,081,600.52/18,000.90
  6. Step 6: Final answer
    x = 8,281.90

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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.