Home / 12,221.01-16,862.07-7,440.90

Finding the Fourth Proportional to 12,221.01, 16,862.07 and 7,440.90

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Solution

The fourth proportional to 12,221.01, 16,862.07 and 7,440.90 is: 10,266.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,221.01 : 16,862.07 = 7,440.90 : x
  2. Step 2: Convert to fraction form
    12,221.01/16,862.07 = 7,440.90/x
  3. Step 3: Cross multiply
    12,221.01x = 16,862.07 × 7,440.90
  4. Step 4: Simplify right side
    12,221.01x = 125,468,941.33
  5. Step 5: Solve for x
    x = 125,468,941.33/12,221.01
  6. Step 6: Final answer
    x = 10,266.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.