Home / 19,009.40-28,514.10-9,167.90

Finding the Fourth Proportional to 19,009.40, 28,514.10 and 9,167.90

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Solution

The fourth proportional to 19,009.40, 28,514.10 and 9,167.90 is: 13,751.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,009.40 : 28,514.10 = 9,167.90 : x
  2. Step 2: Convert to fraction form
    19,009.40/28,514.10 = 9,167.90/x
  3. Step 3: Cross multiply
    19,009.40x = 28,514.10 × 9,167.90
  4. Step 4: Simplify right side
    19,009.40x = 261,414,417.39
  5. Step 5: Solve for x
    x = 261,414,417.39/19,009.40
  6. Step 6: Final answer
    x = 13,751.85

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Similar ratio
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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.