Home / 18,311.76-25,270.92-10,354.86

Finding the Fourth Proportional to 18,311.76, 25,270.92 and 10,354.86

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Solution

The fourth proportional to 18,311.76, 25,270.92 and 10,354.86 is: 14,290.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.76 : 25,270.92 = 10,354.86 : x
  2. Step 2: Convert to fraction form
    18,311.76/25,270.92 = 10,354.86/x
  3. Step 3: Cross multiply
    18,311.76x = 25,270.92 × 10,354.86
  4. Step 4: Simplify right side
    18,311.76x = 261,676,838.67
  5. Step 5: Solve for x
    x = 261,676,838.67/18,311.76
  6. Step 6: Final answer
    x = 14,290.10

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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.