Home / 8,227.14-12,340.60-1,987.10

Finding the Fourth Proportional to 8,227.14, 12,340.60 and 1,987.10

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Solution

The fourth proportional to 8,227.14, 12,340.60 and 1,987.10 is: 2,980.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,227.14 : 12,340.60 = 1,987.10 : x
  2. Step 2: Convert to fraction form
    8,227.14/12,340.60 = 1,987.10/x
  3. Step 3: Cross multiply
    8,227.14x = 12,340.60 × 1,987.10
  4. Step 4: Simplify right side
    8,227.14x = 24,522,006.26
  5. Step 5: Solve for x
    x = 24,522,006.26/8,227.14
  6. Step 6: Final answer
    x = 2,980.62

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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.