Home / 18,815.90-28,228.16-6,335.62

Finding the Fourth Proportional to 18,815.90, 28,228.16 and 6,335.62

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Solution

The fourth proportional to 18,815.90, 28,228.16 and 6,335.62 is: 9,504.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,815.90 : 28,228.16 = 6,335.62 : x
  2. Step 2: Convert to fraction form
    18,815.90/28,228.16 = 6,335.62/x
  3. Step 3: Cross multiply
    18,815.90x = 28,228.16 × 6,335.62
  4. Step 4: Simplify right side
    18,815.90x = 178,842,840.33
  5. Step 5: Solve for x
    x = 178,842,840.33/18,815.90
  6. Step 6: Final answer
    x = 9,504.88

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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.