Home / 9,961.61-13,746.48-5,712.46

Finding the Fourth Proportional to 9,961.61, 13,746.48 and 5,712.46

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Solution

The fourth proportional to 9,961.61, 13,746.48 and 5,712.46 is: 7,882.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,961.61 : 13,746.48 = 5,712.46 : x
  2. Step 2: Convert to fraction form
    9,961.61/13,746.48 = 5,712.46/x
  3. Step 3: Cross multiply
    9,961.61x = 13,746.48 × 5,712.46
  4. Step 4: Simplify right side
    9,961.61x = 78,526,217.14
  5. Step 5: Solve for x
    x = 78,526,217.14/9,961.61
  6. Step 6: Final answer
    x = 7,882.88

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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.