Home / 8,110.19-12,161.49-4,213.55

Finding the Fourth Proportional to 8,110.19, 12,161.49 and 4,213.55

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Solution

The fourth proportional to 8,110.19, 12,161.49 and 4,213.55 is: 6,318.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.19 : 12,161.49 = 4,213.55 : x
  2. Step 2: Convert to fraction form
    8,110.19/12,161.49 = 4,213.55/x
  3. Step 3: Cross multiply
    8,110.19x = 12,161.49 × 4,213.55
  4. Step 4: Simplify right side
    8,110.19x = 51,242,985.38
  5. Step 5: Solve for x
    x = 51,242,985.38/8,110.19
  6. Step 6: Final answer
    x = 6,318.35

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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.