Home / 13,966.38-20,937.12-5,195.30

Finding the Fourth Proportional to 13,966.38, 20,937.12 and 5,195.30

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Solution

The fourth proportional to 13,966.38, 20,937.12 and 5,195.30 is: 7,788.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,966.38 : 20,937.12 = 5,195.30 : x
  2. Step 2: Convert to fraction form
    13,966.38/20,937.12 = 5,195.30/x
  3. Step 3: Cross multiply
    13,966.38x = 20,937.12 × 5,195.30
  4. Step 4: Simplify right side
    13,966.38x = 108,774,619.54
  5. Step 5: Solve for x
    x = 108,774,619.54/13,966.38
  6. Step 6: Final answer
    x = 7,788.32

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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.