Home / 12,972.20-17,901.82-7,593.40

Finding the Fourth Proportional to 12,972.20, 17,901.82 and 7,593.40

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Solution

The fourth proportional to 12,972.20, 17,901.82 and 7,593.40 is: 10,479.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,972.20 : 17,901.82 = 7,593.40 : x
  2. Step 2: Convert to fraction form
    12,972.20/17,901.82 = 7,593.40/x
  3. Step 3: Cross multiply
    12,972.20x = 17,901.82 × 7,593.40
  4. Step 4: Simplify right side
    12,972.20x = 135,935,679.99
  5. Step 5: Solve for x
    x = 135,935,679.99/12,972.20
  6. Step 6: Final answer
    x = 10,479.00

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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.