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Finding the Fourth Proportional to 11,321.01, 16,981.55 and 4,655.79

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Solution

The fourth proportional to 11,321.01, 16,981.55 and 4,655.79 is: 6,983.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.01 : 16,981.55 = 4,655.79 : x
  2. Step 2: Convert to fraction form
    11,321.01/16,981.55 = 4,655.79/x
  3. Step 3: Cross multiply
    11,321.01x = 16,981.55 × 4,655.79
  4. Step 4: Simplify right side
    11,321.01x = 79,062,530.67
  5. Step 5: Solve for x
    x = 79,062,530.67/11,321.01
  6. Step 6: Final answer
    x = 6,983.70

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Similar ratio
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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.