Home / 8,479.18-12,719.53-2,239.11

Finding the Fourth Proportional to 8,479.18, 12,719.53 and 2,239.11

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Solution

The fourth proportional to 8,479.18, 12,719.53 and 2,239.11 is: 3,358.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.18 : 12,719.53 = 2,239.11 : x
  2. Step 2: Convert to fraction form
    8,479.18/12,719.53 = 2,239.11/x
  3. Step 3: Cross multiply
    8,479.18x = 12,719.53 × 2,239.11
  4. Step 4: Simplify right side
    8,479.18x = 28,480,429.62
  5. Step 5: Solve for x
    x = 28,480,429.62/8,479.18
  6. Step 6: Final answer
    x = 3,358.87

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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.