Home / 8,561.85-12,844.80-2,718.51

Finding the Fourth Proportional to 8,561.85, 12,844.80 and 2,718.51

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Solution

The fourth proportional to 8,561.85, 12,844.80 and 2,718.51 is: 4,078.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,561.85 : 12,844.80 = 2,718.51 : x
  2. Step 2: Convert to fraction form
    8,561.85/12,844.80 = 2,718.51/x
  3. Step 3: Cross multiply
    8,561.85x = 12,844.80 × 2,718.51
  4. Step 4: Simplify right side
    8,561.85x = 34,918,717.25
  5. Step 5: Solve for x
    x = 34,918,717.25/8,561.85
  6. Step 6: Final answer
    x = 4,078.41

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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.