Home / 13,746.38-20,619.56-5,538.38

Finding the Fourth Proportional to 13,746.38, 20,619.56 and 5,538.38

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Solution

The fourth proportional to 13,746.38, 20,619.56 and 5,538.38 is: 8,307.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.38 : 20,619.56 = 5,538.38 : x
  2. Step 2: Convert to fraction form
    13,746.38/20,619.56 = 5,538.38/x
  3. Step 3: Cross multiply
    13,746.38x = 20,619.56 × 5,538.38
  4. Step 4: Simplify right side
    13,746.38x = 114,198,869.46
  5. Step 5: Solve for x
    x = 114,198,869.46/13,746.38
  6. Step 6: Final answer
    x = 8,307.56

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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.