Home / 8,851.12-13,276.71-3,920.81

Finding the Fourth Proportional to 8,851.12, 13,276.71 and 3,920.81

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Solution

The fourth proportional to 8,851.12, 13,276.71 and 3,920.81 is: 5,881.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,851.12 : 13,276.71 = 3,920.81 : x
  2. Step 2: Convert to fraction form
    8,851.12/13,276.71 = 3,920.81/x
  3. Step 3: Cross multiply
    8,851.12x = 13,276.71 × 3,920.81
  4. Step 4: Simplify right side
    8,851.12x = 52,055,390.95
  5. Step 5: Solve for x
    x = 52,055,390.95/8,851.12
  6. Step 6: Final answer
    x = 5,881.22

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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.