Home / 8,851.20-13,278.62-7,400.49

Finding the Fourth Proportional to 8,851.20, 13,278.62 and 7,400.49

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Solution

The fourth proportional to 8,851.20, 13,278.62 and 7,400.49 is: 11,102.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,851.20 : 13,278.62 = 7,400.49 : x
  2. Step 2: Convert to fraction form
    8,851.20/13,278.62 = 7,400.49/x
  3. Step 3: Cross multiply
    8,851.20x = 13,278.62 × 7,400.49
  4. Step 4: Simplify right side
    8,851.20x = 98,268,294.52
  5. Step 5: Solve for x
    x = 98,268,294.52/8,851.20
  6. Step 6: Final answer
    x = 11,102.26

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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.