Home / 8,799.36-13,180.68-5,278.20

Finding the Fourth Proportional to 8,799.36, 13,180.68 and 5,278.20

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Solution

The fourth proportional to 8,799.36, 13,180.68 and 5,278.20 is: 7,906.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,799.36 : 13,180.68 = 5,278.20 : x
  2. Step 2: Convert to fraction form
    8,799.36/13,180.68 = 5,278.20/x
  3. Step 3: Cross multiply
    8,799.36x = 13,180.68 × 5,278.20
  4. Step 4: Simplify right side
    8,799.36x = 69,570,265.18
  5. Step 5: Solve for x
    x = 69,570,265.18/8,799.36
  6. Step 6: Final answer
    x = 7,906.29

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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.