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Finding the Fourth Proportional to 10,842.80, 16,252.20 and 4,266.80

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Solution

The fourth proportional to 10,842.80, 16,252.20 and 4,266.80 is: 6,395.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,842.80 : 16,252.20 = 4,266.80 : x
  2. Step 2: Convert to fraction form
    10,842.80/16,252.20 = 4,266.80/x
  3. Step 3: Cross multiply
    10,842.80x = 16,252.20 × 4,266.80
  4. Step 4: Simplify right side
    10,842.80x = 69,344,886.96
  5. Step 5: Solve for x
    x = 69,344,886.96/10,842.80
  6. Step 6: Final answer
    x = 6,395.48

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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.