Home / 18,655.20-25,743.78-10,271.70

Finding the Fourth Proportional to 18,655.20, 25,743.78 and 10,271.70

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Solution

The fourth proportional to 18,655.20, 25,743.78 and 10,271.70 is: 14,174.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,655.20 : 25,743.78 = 10,271.70 : x
  2. Step 2: Convert to fraction form
    18,655.20/25,743.78 = 10,271.70/x
  3. Step 3: Cross multiply
    18,655.20x = 25,743.78 × 10,271.70
  4. Step 4: Simplify right side
    18,655.20x = 264,432,385.03
  5. Step 5: Solve for x
    x = 264,432,385.03/18,655.20
  6. Step 6: Final answer
    x = 14,174.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.