Home / 12,932.28-17,838-11,948.04

Finding the Fourth Proportional to 12,932.28, 17,838 and 11,948.04

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Solution

The fourth proportional to 12,932.28, 17,838 and 11,948.04 is: 16,480.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,932.28 : 17,838 = 11,948.04 : x
  2. Step 2: Convert to fraction form
    12,932.28/17,838 = 11,948.04/x
  3. Step 3: Cross multiply
    12,932.28x = 17,838 × 11,948.04
  4. Step 4: Simplify right side
    12,932.28x = 213,129,137.52
  5. Step 5: Solve for x
    x = 213,129,137.52/12,932.28
  6. Step 6: Final answer
    x = 16,480.40

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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.