Home / 15,093.28-20,829.26-9,123.78

Finding the Fourth Proportional to 15,093.28, 20,829.26 and 9,123.78

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Solution

The fourth proportional to 15,093.28, 20,829.26 and 9,123.78 is: 12,591.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,093.28 : 20,829.26 = 9,123.78 : x
  2. Step 2: Convert to fraction form
    15,093.28/20,829.26 = 9,123.78/x
  3. Step 3: Cross multiply
    15,093.28x = 20,829.26 × 9,123.78
  4. Step 4: Simplify right side
    15,093.28x = 190,041,585.80
  5. Step 5: Solve for x
    x = 190,041,585.80/15,093.28
  6. Step 6: Final answer
    x = 12,591.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.