Home / 18,445.66-25,391.02-13,961.50

Finding the Fourth Proportional to 18,445.66, 25,391.02 and 13,961.50

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Solution

The fourth proportional to 18,445.66, 25,391.02 and 13,961.50 is: 19,218.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,445.66 : 25,391.02 = 13,961.50 : x
  2. Step 2: Convert to fraction form
    18,445.66/25,391.02 = 13,961.50/x
  3. Step 3: Cross multiply
    18,445.66x = 25,391.02 × 13,961.50
  4. Step 4: Simplify right side
    18,445.66x = 354,496,725.73
  5. Step 5: Solve for x
    x = 354,496,725.73/18,445.66
  6. Step 6: Final answer
    x = 19,218.44

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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.