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Finding the Fourth Proportional to 8,496.56, 11,712.12 and 6,921.92

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Solution

The fourth proportional to 8,496.56, 11,712.12 and 6,921.92 is: 9,541.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,496.56 : 11,712.12 = 6,921.92 : x
  2. Step 2: Convert to fraction form
    8,496.56/11,712.12 = 6,921.92/x
  3. Step 3: Cross multiply
    8,496.56x = 11,712.12 × 6,921.92
  4. Step 4: Simplify right side
    8,496.56x = 81,070,357.67
  5. Step 5: Solve for x
    x = 81,070,357.67/8,496.56
  6. Step 6: Final answer
    x = 9,541.55

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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.