Home / 8,561.56-12,842.36-2,718.68

Finding the Fourth Proportional to 8,561.56, 12,842.36 and 2,718.68

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Solution

The fourth proportional to 8,561.56, 12,842.36 and 2,718.68 is: 4,078.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,561.56 : 12,842.36 = 2,718.68 : x
  2. Step 2: Convert to fraction form
    8,561.56/12,842.36 = 2,718.68/x
  3. Step 3: Cross multiply
    8,561.56x = 12,842.36 × 2,718.68
  4. Step 4: Simplify right side
    8,561.56x = 34,914,267.28
  5. Step 5: Solve for x
    x = 34,914,267.28/8,561.56
  6. Step 6: Final answer
    x = 4,078.03

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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.