Home / 10,422.33-15,633.18-2,631.21

Finding the Fourth Proportional to 10,422.33, 15,633.18 and 2,631.21

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Solution

The fourth proportional to 10,422.33, 15,633.18 and 2,631.21 is: 3,946.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,422.33 : 15,633.18 = 2,631.21 : x
  2. Step 2: Convert to fraction form
    10,422.33/15,633.18 = 2,631.21/x
  3. Step 3: Cross multiply
    10,422.33x = 15,633.18 × 2,631.21
  4. Step 4: Simplify right side
    10,422.33x = 41,134,179.55
  5. Step 5: Solve for x
    x = 41,134,179.55/10,422.33
  6. Step 6: Final answer
    x = 3,946.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.