Home / 12,557.28-18,833.34-11,932.80

Finding the Fourth Proportional to 12,557.28, 18,833.34 and 11,932.80

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Solution

The fourth proportional to 12,557.28, 18,833.34 and 11,932.80 is: 17,896.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,557.28 : 18,833.34 = 11,932.80 : x
  2. Step 2: Convert to fraction form
    12,557.28/18,833.34 = 11,932.80/x
  3. Step 3: Cross multiply
    12,557.28x = 18,833.34 × 11,932.80
  4. Step 4: Simplify right side
    12,557.28x = 224,734,479.55
  5. Step 5: Solve for x
    x = 224,734,479.55/12,557.28
  6. Step 6: Final answer
    x = 17,896.75

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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.