Home / 18,280.55-27,418.70-5,134.05

Finding the Fourth Proportional to 18,280.55, 27,418.70 and 5,134.05

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Solution

The fourth proportional to 18,280.55, 27,418.70 and 5,134.05 is: 7,700.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,280.55 : 27,418.70 = 5,134.05 : x
  2. Step 2: Convert to fraction form
    18,280.55/27,418.70 = 5,134.05/x
  3. Step 3: Cross multiply
    18,280.55x = 27,418.70 × 5,134.05
  4. Step 4: Simplify right side
    18,280.55x = 140,768,989.57
  5. Step 5: Solve for x
    x = 140,768,989.57/18,280.55
  6. Step 6: Final answer
    x = 7,700.48

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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.