Home / 12,240.73-16,887.22-7,990.35

Finding the Fourth Proportional to 12,240.73, 16,887.22 and 7,990.35

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Solution

The fourth proportional to 12,240.73, 16,887.22 and 7,990.35 is: 11,023.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240.73 : 16,887.22 = 7,990.35 : x
  2. Step 2: Convert to fraction form
    12,240.73/16,887.22 = 7,990.35/x
  3. Step 3: Cross multiply
    12,240.73x = 16,887.22 × 7,990.35
  4. Step 4: Simplify right side
    12,240.73x = 134,934,798.33
  5. Step 5: Solve for x
    x = 134,934,798.33/12,240.73
  6. Step 6: Final answer
    x = 11,023.43

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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.