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Finding the Fourth Proportional to 10,854.40, 16,270.80 and 5,000.80

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Solution

The fourth proportional to 10,854.40, 16,270.80 and 5,000.80 is: 7,496.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,854.40 : 16,270.80 = 5,000.80 : x
  2. Step 2: Convert to fraction form
    10,854.40/16,270.80 = 5,000.80/x
  3. Step 3: Cross multiply
    10,854.40x = 16,270.80 × 5,000.80
  4. Step 4: Simplify right side
    10,854.40x = 81,367,016.64
  5. Step 5: Solve for x
    x = 81,367,016.64/10,854.40
  6. Step 6: Final answer
    x = 7,496.22

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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.