Home / 16,940.10-23,385.60-11,278.20

Finding the Fourth Proportional to 16,940.10, 23,385.60 and 11,278.20

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Solution

The fourth proportional to 16,940.10, 23,385.60 and 11,278.20 is: 15,569.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,940.10 : 23,385.60 = 11,278.20 : x
  2. Step 2: Convert to fraction form
    16,940.10/23,385.60 = 11,278.20/x
  3. Step 3: Cross multiply
    16,940.10x = 23,385.60 × 11,278.20
  4. Step 4: Simplify right side
    16,940.10x = 263,747,473.92
  5. Step 5: Solve for x
    x = 263,747,473.92/16,940.10
  6. Step 6: Final answer
    x = 15,569.42

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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.