Home / 12,538.38-18,710.82-11,226.18

Finding the Fourth Proportional to 12,538.38, 18,710.82 and 11,226.18

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Solution

The fourth proportional to 12,538.38, 18,710.82 and 11,226.18 is: 16,752.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,538.38 : 18,710.82 = 11,226.18 : x
  2. Step 2: Convert to fraction form
    12,538.38/18,710.82 = 11,226.18/x
  3. Step 3: Cross multiply
    12,538.38x = 18,710.82 × 11,226.18
  4. Step 4: Simplify right side
    12,538.38x = 210,051,033.27
  5. Step 5: Solve for x
    x = 210,051,033.27/12,538.38
  6. Step 6: Final answer
    x = 16,752.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.