Home / 18,418.66-25,434.02-13,694.74

Finding the Fourth Proportional to 18,418.66, 25,434.02 and 13,694.74

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Solution

The fourth proportional to 18,418.66, 25,434.02 and 13,694.74 is: 18,910.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,418.66 : 25,434.02 = 13,694.74 : x
  2. Step 2: Convert to fraction form
    18,418.66/25,434.02 = 13,694.74/x
  3. Step 3: Cross multiply
    18,418.66x = 25,434.02 × 13,694.74
  4. Step 4: Simplify right side
    18,418.66x = 348,312,291.05
  5. Step 5: Solve for x
    x = 348,312,291.05/18,418.66
  6. Step 6: Final answer
    x = 18,910.84

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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.