Home / 11,727.45-17,615.68-9,972.18

Finding the Fourth Proportional to 11,727.45, 17,615.68 and 9,972.18

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Solution

The fourth proportional to 11,727.45, 17,615.68 and 9,972.18 is: 14,979.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,727.45 : 17,615.68 = 9,972.18 : x
  2. Step 2: Convert to fraction form
    11,727.45/17,615.68 = 9,972.18/x
  3. Step 3: Cross multiply
    11,727.45x = 17,615.68 × 9,972.18
  4. Step 4: Simplify right side
    11,727.45x = 175,666,706.85
  5. Step 5: Solve for x
    x = 175,666,706.85/11,727.45
  6. Step 6: Final answer
    x = 14,979.11

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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.