Home / 18,884.55-28,320.94-6,875.29

Finding the Fourth Proportional to 18,884.55, 28,320.94 and 6,875.29

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Solution

The fourth proportional to 18,884.55, 28,320.94 and 6,875.29 is: 10,310.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,884.55 : 28,320.94 = 6,875.29 : x
  2. Step 2: Convert to fraction form
    18,884.55/28,320.94 = 6,875.29/x
  3. Step 3: Cross multiply
    18,884.55x = 28,320.94 × 6,875.29
  4. Step 4: Simplify right side
    18,884.55x = 194,714,675.57
  5. Step 5: Solve for x
    x = 194,714,675.57/18,884.55
  6. Step 6: Final answer
    x = 10,310.79

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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.