Home / 8,561.81-12,843.93-2,718.92

Finding the Fourth Proportional to 8,561.81, 12,843.93 and 2,718.92

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Solution

The fourth proportional to 8,561.81, 12,843.93 and 2,718.92 is: 4,078.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,561.81 : 12,843.93 = 2,718.92 : x
  2. Step 2: Convert to fraction form
    8,561.81/12,843.93 = 2,718.92/x
  3. Step 3: Cross multiply
    8,561.81x = 12,843.93 × 2,718.92
  4. Step 4: Simplify right side
    8,561.81x = 34,921,618.16
  5. Step 5: Solve for x
    x = 34,921,618.16/8,561.81
  6. Step 6: Final answer
    x = 4,078.77

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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.