Home / 18,847.60-28,253.40-6,998.20

Finding the Fourth Proportional to 18,847.60, 28,253.40 and 6,998.20

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Solution

The fourth proportional to 18,847.60, 28,253.40 and 6,998.20 is: 10,490.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,847.60 : 28,253.40 = 6,998.20 : x
  2. Step 2: Convert to fraction form
    18,847.60/28,253.40 = 6,998.20/x
  3. Step 3: Cross multiply
    18,847.60x = 28,253.40 × 6,998.20
  4. Step 4: Simplify right side
    18,847.60x = 197,722,943.88
  5. Step 5: Solve for x
    x = 197,722,943.88/18,847.60
  6. Step 6: Final answer
    x = 10,490.62

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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.