Home / 13,508.76-20,248.56-5,723.04

Finding the Fourth Proportional to 13,508.76, 20,248.56 and 5,723.04

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Solution

The fourth proportional to 13,508.76, 20,248.56 and 5,723.04 is: 8,578.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508.76 : 20,248.56 = 5,723.04 : x
  2. Step 2: Convert to fraction form
    13,508.76/20,248.56 = 5,723.04/x
  3. Step 3: Cross multiply
    13,508.76x = 20,248.56 × 5,723.04
  4. Step 4: Simplify right side
    13,508.76x = 115,883,318.82
  5. Step 5: Solve for x
    x = 115,883,318.82/13,508.76
  6. Step 6: Final answer
    x = 8,578.38

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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.