Home / 15,039.75-20,754.56-8,324.99

Finding the Fourth Proportional to 15,039.75, 20,754.56 and 8,324.99

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Solution

The fourth proportional to 15,039.75, 20,754.56 and 8,324.99 is: 11,488.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,039.75 : 20,754.56 = 8,324.99 : x
  2. Step 2: Convert to fraction form
    15,039.75/20,754.56 = 8,324.99/x
  3. Step 3: Cross multiply
    15,039.75x = 20,754.56 × 8,324.99
  4. Step 4: Simplify right side
    15,039.75x = 172,781,499.32
  5. Step 5: Solve for x
    x = 172,781,499.32/15,039.75
  6. Step 6: Final answer
    x = 11,488.32

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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.