Home / 13,236.28-19,854.42-5,445.70

Finding the Fourth Proportional to 13,236.28, 19,854.42 and 5,445.70

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Solution

The fourth proportional to 13,236.28, 19,854.42 and 5,445.70 is: 8,168.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236.28 : 19,854.42 = 5,445.70 : x
  2. Step 2: Convert to fraction form
    13,236.28/19,854.42 = 5,445.70/x
  3. Step 3: Cross multiply
    13,236.28x = 19,854.42 × 5,445.70
  4. Step 4: Simplify right side
    13,236.28x = 108,121,214.99
  5. Step 5: Solve for x
    x = 108,121,214.99/13,236.28
  6. Step 6: Final answer
    x = 8,168.55

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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.