Home / 12,641.85-18,961.29-5,622.03

Finding the Fourth Proportional to 12,641.85, 18,961.29 and 5,622.03

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Solution

The fourth proportional to 12,641.85, 18,961.29 and 5,622.03 is: 8,432.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,641.85 : 18,961.29 = 5,622.03 : x
  2. Step 2: Convert to fraction form
    12,641.85/18,961.29 = 5,622.03/x
  3. Step 3: Cross multiply
    12,641.85x = 18,961.29 × 5,622.03
  4. Step 4: Simplify right side
    12,641.85x = 106,600,941.22
  5. Step 5: Solve for x
    x = 106,600,941.22/12,641.85
  6. Step 6: Final answer
    x = 8,432.38

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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.