Home / 18,904.38-26,088.11-10,520.88

Finding the Fourth Proportional to 18,904.38, 26,088.11 and 10,520.88

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Solution

The fourth proportional to 18,904.38, 26,088.11 and 10,520.88 is: 14,518.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,904.38 : 26,088.11 = 10,520.88 : x
  2. Step 2: Convert to fraction form
    18,904.38/26,088.11 = 10,520.88/x
  3. Step 3: Cross multiply
    18,904.38x = 26,088.11 × 10,520.88
  4. Step 4: Simplify right side
    18,904.38x = 274,469,874.74
  5. Step 5: Solve for x
    x = 274,469,874.74/18,904.38
  6. Step 6: Final answer
    x = 14,518.85

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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.