Home / 12,932.80-19,371.52-7,383.20

Finding the Fourth Proportional to 12,932.80, 19,371.52 and 7,383.20

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Solution

The fourth proportional to 12,932.80, 19,371.52 and 7,383.20 is: 11,059.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,932.80 : 19,371.52 = 7,383.20 : x
  2. Step 2: Convert to fraction form
    12,932.80/19,371.52 = 7,383.20/x
  3. Step 3: Cross multiply
    12,932.80x = 19,371.52 × 7,383.20
  4. Step 4: Simplify right side
    12,932.80x = 143,023,806.46
  5. Step 5: Solve for x
    x = 143,023,806.46/12,932.80
  6. Step 6: Final answer
    x = 11,059.00

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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.