Home / 8,161.70-12,244.65-3,479.36

Finding the Fourth Proportional to 8,161.70, 12,244.65 and 3,479.36

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Solution

The fourth proportional to 8,161.70, 12,244.65 and 3,479.36 is: 5,219.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,161.70 : 12,244.65 = 3,479.36 : x
  2. Step 2: Convert to fraction form
    8,161.70/12,244.65 = 3,479.36/x
  3. Step 3: Cross multiply
    8,161.70x = 12,244.65 × 3,479.36
  4. Step 4: Simplify right side
    8,161.70x = 42,603,484.20
  5. Step 5: Solve for x
    x = 42,603,484.20/8,161.70
  6. Step 6: Final answer
    x = 5,219.93

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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.