Home / 8,618.09-12,927.20-3,685.19

Finding the Fourth Proportional to 8,618.09, 12,927.20 and 3,685.19

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Solution

The fourth proportional to 8,618.09, 12,927.20 and 3,685.19 is: 5,527.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618.09 : 12,927.20 = 3,685.19 : x
  2. Step 2: Convert to fraction form
    8,618.09/12,927.20 = 3,685.19/x
  3. Step 3: Cross multiply
    8,618.09x = 12,927.20 × 3,685.19
  4. Step 4: Simplify right side
    8,618.09x = 47,639,105.11
  5. Step 5: Solve for x
    x = 47,639,105.11/8,618.09
  6. Step 6: Final answer
    x = 5,527.81

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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.