Home / 9,966.22-13,753.53-5,717.97

Finding the Fourth Proportional to 9,966.22, 13,753.53 and 5,717.97

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Solution

The fourth proportional to 9,966.22, 13,753.53 and 5,717.97 is: 7,890.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,966.22 : 13,753.53 = 5,717.97 : x
  2. Step 2: Convert to fraction form
    9,966.22/13,753.53 = 5,717.97/x
  3. Step 3: Cross multiply
    9,966.22x = 13,753.53 × 5,717.97
  4. Step 4: Simplify right side
    9,966.22x = 78,642,271.93
  5. Step 5: Solve for x
    x = 78,642,271.93/9,966.22
  6. Step 6: Final answer
    x = 7,890.88

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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.