Home / 18,651.36-25,725.76-12,275.91

Finding the Fourth Proportional to 18,651.36, 25,725.76 and 12,275.91

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Solution

The fourth proportional to 18,651.36, 25,725.76 and 12,275.91 is: 16,932.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,651.36 : 25,725.76 = 12,275.91 : x
  2. Step 2: Convert to fraction form
    18,651.36/25,725.76 = 12,275.91/x
  3. Step 3: Cross multiply
    18,651.36x = 25,725.76 × 12,275.91
  4. Step 4: Simplify right side
    18,651.36x = 315,807,114.44
  5. Step 5: Solve for x
    x = 315,807,114.44/18,651.36
  6. Step 6: Final answer
    x = 16,932.12

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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.