Home / 8,101.98-12,154.60-2,556.18

Finding the Fourth Proportional to 8,101.98, 12,154.60 and 2,556.18

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Solution

The fourth proportional to 8,101.98, 12,154.60 and 2,556.18 is: 3,834.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,101.98 : 12,154.60 = 2,556.18 : x
  2. Step 2: Convert to fraction form
    8,101.98/12,154.60 = 2,556.18/x
  3. Step 3: Cross multiply
    8,101.98x = 12,154.60 × 2,556.18
  4. Step 4: Simplify right side
    8,101.98x = 31,069,345.43
  5. Step 5: Solve for x
    x = 31,069,345.43/8,101.98
  6. Step 6: Final answer
    x = 3,834.78

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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.