Home / 8,561.79-12,842.55-2,718.33

Finding the Fourth Proportional to 8,561.79, 12,842.55 and 2,718.33

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Solution

The fourth proportional to 8,561.79, 12,842.55 and 2,718.33 is: 4,077.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,561.79 : 12,842.55 = 2,718.33 : x
  2. Step 2: Convert to fraction form
    8,561.79/12,842.55 = 2,718.33/x
  3. Step 3: Cross multiply
    8,561.79x = 12,842.55 × 2,718.33
  4. Step 4: Simplify right side
    8,561.79x = 34,910,288.94
  5. Step 5: Solve for x
    x = 34,910,288.94/8,561.79
  6. Step 6: Final answer
    x = 4,077.45

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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.