Home / 18,877.20-28,316.22-6,868.96

Finding the Fourth Proportional to 18,877.20, 28,316.22 and 6,868.96

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Solution

The fourth proportional to 18,877.20, 28,316.22 and 6,868.96 is: 10,303.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,877.20 : 28,316.22 = 6,868.96 : x
  2. Step 2: Convert to fraction form
    18,877.20/28,316.22 = 6,868.96/x
  3. Step 3: Cross multiply
    18,877.20x = 28,316.22 × 6,868.96
  4. Step 4: Simplify right side
    18,877.20x = 194,502,982.53
  5. Step 5: Solve for x
    x = 194,502,982.53/18,877.20
  6. Step 6: Final answer
    x = 10,303.59

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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.