Home / 12,242.01-18,364.40-3,919.11

Finding the Fourth Proportional to 12,242.01, 18,364.40 and 3,919.11

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Solution

The fourth proportional to 12,242.01, 18,364.40 and 3,919.11 is: 5,879.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,242.01 : 18,364.40 = 3,919.11 : x
  2. Step 2: Convert to fraction form
    12,242.01/18,364.40 = 3,919.11/x
  3. Step 3: Cross multiply
    12,242.01x = 18,364.40 × 3,919.11
  4. Step 4: Simplify right side
    12,242.01x = 71,972,070.55
  5. Step 5: Solve for x
    x = 71,972,070.55/12,242.01
  6. Step 6: Final answer
    x = 5,879.11

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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.