Home / 13,029.38-17,961.64-8,545.36

Finding the Fourth Proportional to 13,029.38, 17,961.64 and 8,545.36

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Solution

The fourth proportional to 13,029.38, 17,961.64 and 8,545.36 is: 11,780.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,029.38 : 17,961.64 = 8,545.36 : x
  2. Step 2: Convert to fraction form
    13,029.38/17,961.64 = 8,545.36/x
  3. Step 3: Cross multiply
    13,029.38x = 17,961.64 × 8,545.36
  4. Step 4: Simplify right side
    13,029.38x = 153,488,679.99
  5. Step 5: Solve for x
    x = 153,488,679.99/13,029.38
  6. Step 6: Final answer
    x = 11,780.20

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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.