Home / 8,755.20-13,127.76-2,911.68

Finding the Fourth Proportional to 8,755.20, 13,127.76 and 2,911.68

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Solution

The fourth proportional to 8,755.20, 13,127.76 and 2,911.68 is: 4,365.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,755.20 : 13,127.76 = 2,911.68 : x
  2. Step 2: Convert to fraction form
    8,755.20/13,127.76 = 2,911.68/x
  3. Step 3: Cross multiply
    8,755.20x = 13,127.76 × 2,911.68
  4. Step 4: Simplify right side
    8,755.20x = 38,223,836.24
  5. Step 5: Solve for x
    x = 38,223,836.24/8,755.20
  6. Step 6: Final answer
    x = 4,365.84

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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.