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Finding the Fourth Proportional to 10,817.55, 16,230.21 and 4,248.21

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Solution

The fourth proportional to 10,817.55, 16,230.21 and 4,248.21 is: 6,373.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,817.55 : 16,230.21 = 4,248.21 : x
  2. Step 2: Convert to fraction form
    10,817.55/16,230.21 = 4,248.21/x
  3. Step 3: Cross multiply
    10,817.55x = 16,230.21 × 4,248.21
  4. Step 4: Simplify right side
    10,817.55x = 68,949,340.42
  5. Step 5: Solve for x
    x = 68,949,340.42/10,817.55
  6. Step 6: Final answer
    x = 6,373.84

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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.