Home / 18,677.46-28,016.28-5,530.08

Finding the Fourth Proportional to 18,677.46, 28,016.28 and 5,530.08

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Solution

The fourth proportional to 18,677.46, 28,016.28 and 5,530.08 is: 8,295.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677.46 : 28,016.28 = 5,530.08 : x
  2. Step 2: Convert to fraction form
    18,677.46/28,016.28 = 5,530.08/x
  3. Step 3: Cross multiply
    18,677.46x = 28,016.28 × 5,530.08
  4. Step 4: Simplify right side
    18,677.46x = 154,932,269.70
  5. Step 5: Solve for x
    x = 154,932,269.70/18,677.46
  6. Step 6: Final answer
    x = 8,295.15

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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.