Home / 12,286.41-18,423.13-5,357.13

Finding the Fourth Proportional to 12,286.41, 18,423.13 and 5,357.13

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Solution

The fourth proportional to 12,286.41, 18,423.13 and 5,357.13 is: 8,032.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286.41 : 18,423.13 = 5,357.13 : x
  2. Step 2: Convert to fraction form
    12,286.41/18,423.13 = 5,357.13/x
  3. Step 3: Cross multiply
    12,286.41x = 18,423.13 × 5,357.13
  4. Step 4: Simplify right side
    12,286.41x = 98,695,102.42
  5. Step 5: Solve for x
    x = 98,695,102.42/12,286.41
  6. Step 6: Final answer
    x = 8,032.87

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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.