Home / 12,972.24-17,901.80-7,306.80

Finding the Fourth Proportional to 12,972.24, 17,901.80 and 7,306.80

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Solution

The fourth proportional to 12,972.24, 17,901.80 and 7,306.80 is: 10,083.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,972.24 : 17,901.80 = 7,306.80 : x
  2. Step 2: Convert to fraction form
    12,972.24/17,901.80 = 7,306.80/x
  3. Step 3: Cross multiply
    12,972.24x = 17,901.80 × 7,306.80
  4. Step 4: Simplify right side
    12,972.24x = 130,804,872.24
  5. Step 5: Solve for x
    x = 130,804,872.24/12,972.24
  6. Step 6: Final answer
    x = 10,083.45

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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.