Home / 18,827.60-25,960.88-15,414

Finding the Fourth Proportional to 18,827.60, 25,960.88 and 15,414

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Solution

The fourth proportional to 18,827.60, 25,960.88 and 15,414 is: 21,253.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,827.60 : 25,960.88 = 15,414 : x
  2. Step 2: Convert to fraction form
    18,827.60/25,960.88 = 15,414/x
  3. Step 3: Cross multiply
    18,827.60x = 25,960.88 × 15,414
  4. Step 4: Simplify right side
    18,827.60x = 400,161,004.32
  5. Step 5: Solve for x
    x = 400,161,004.32/18,827.60
  6. Step 6: Final answer
    x = 21,253.96

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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.