Home / 10,934.40-16,399.16-3,143.84

Finding the Fourth Proportional to 10,934.40, 16,399.16 and 3,143.84

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Solution

The fourth proportional to 10,934.40, 16,399.16 and 3,143.84 is: 4,715.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,934.40 : 16,399.16 = 3,143.84 : x
  2. Step 2: Convert to fraction form
    10,934.40/16,399.16 = 3,143.84/x
  3. Step 3: Cross multiply
    10,934.40x = 16,399.16 × 3,143.84
  4. Step 4: Simplify right side
    10,934.40x = 51,556,335.17
  5. Step 5: Solve for x
    x = 51,556,335.17/10,934.40
  6. Step 6: Final answer
    x = 4,715.06

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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.