Home / 12,151.08-18,229.50-4,756.20

Finding the Fourth Proportional to 12,151.08, 18,229.50 and 4,756.20

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Solution

The fourth proportional to 12,151.08, 18,229.50 and 4,756.20 is: 7,135.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,151.08 : 18,229.50 = 4,756.20 : x
  2. Step 2: Convert to fraction form
    12,151.08/18,229.50 = 4,756.20/x
  3. Step 3: Cross multiply
    12,151.08x = 18,229.50 × 4,756.20
  4. Step 4: Simplify right side
    12,151.08x = 86,703,147.90
  5. Step 5: Solve for x
    x = 86,703,147.90/12,151.08
  6. Step 6: Final answer
    x = 7,135.43

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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.