Home / 16,418.12-22,649.78-11,111.08

Finding the Fourth Proportional to 16,418.12, 22,649.78 and 11,111.08

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Solution

The fourth proportional to 16,418.12, 22,649.78 and 11,111.08 is: 15,328.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,418.12 : 22,649.78 = 11,111.08 : x
  2. Step 2: Convert to fraction form
    16,418.12/22,649.78 = 11,111.08/x
  3. Step 3: Cross multiply
    16,418.12x = 22,649.78 × 11,111.08
  4. Step 4: Simplify right side
    16,418.12x = 251,663,517.56
  5. Step 5: Solve for x
    x = 251,663,517.56/16,418.12
  6. Step 6: Final answer
    x = 15,328.40

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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.