Home / 18,236.52-25,175.88-12,299.40

Finding the Fourth Proportional to 18,236.52, 25,175.88 and 12,299.40

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Solution

The fourth proportional to 18,236.52, 25,175.88 and 12,299.40 is: 16,979.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,236.52 : 25,175.88 = 12,299.40 : x
  2. Step 2: Convert to fraction form
    18,236.52/25,175.88 = 12,299.40/x
  3. Step 3: Cross multiply
    18,236.52x = 25,175.88 × 12,299.40
  4. Step 4: Simplify right side
    18,236.52x = 309,648,218.47
  5. Step 5: Solve for x
    x = 309,648,218.47/18,236.52
  6. Step 6: Final answer
    x = 16,979.57

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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.