Home / 18,743.12-25,865.28-10,359.44

Finding the Fourth Proportional to 18,743.12, 25,865.28 and 10,359.44

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Solution

The fourth proportional to 18,743.12, 25,865.28 and 10,359.44 is: 14,295.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,743.12 : 25,865.28 = 10,359.44 : x
  2. Step 2: Convert to fraction form
    18,743.12/25,865.28 = 10,359.44/x
  3. Step 3: Cross multiply
    18,743.12x = 25,865.28 × 10,359.44
  4. Step 4: Simplify right side
    18,743.12x = 267,949,816.24
  5. Step 5: Solve for x
    x = 267,949,816.24/18,743.12
  6. Step 6: Final answer
    x = 14,295.90

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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.