Home / 15,105.14-22,748.12-13,758.38

Finding the Fourth Proportional to 15,105.14, 22,748.12 and 13,758.38

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Solution

The fourth proportional to 15,105.14, 22,748.12 and 13,758.38 is: 20,719.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,105.14 : 22,748.12 = 13,758.38 : x
  2. Step 2: Convert to fraction form
    15,105.14/22,748.12 = 13,758.38/x
  3. Step 3: Cross multiply
    15,105.14x = 22,748.12 × 13,758.38
  4. Step 4: Simplify right side
    15,105.14x = 312,977,279.25
  5. Step 5: Solve for x
    x = 312,977,279.25/15,105.14
  6. Step 6: Final answer
    x = 20,719.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.