Home / 18,817.85-28,228.15-6,337.88

Finding the Fourth Proportional to 18,817.85, 28,228.15 and 6,337.88

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Solution

The fourth proportional to 18,817.85, 28,228.15 and 6,337.88 is: 9,507.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,817.85 : 28,228.15 = 6,337.88 : x
  2. Step 2: Convert to fraction form
    18,817.85/28,228.15 = 6,337.88/x
  3. Step 3: Cross multiply
    18,817.85x = 28,228.15 × 6,337.88
  4. Step 4: Simplify right side
    18,817.85x = 178,906,564.31
  5. Step 5: Solve for x
    x = 178,906,564.31/18,817.85
  6. Step 6: Final answer
    x = 9,507.28

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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.