Home / 10,934.81-16,406.82-5,388.20

Finding the Fourth Proportional to 10,934.81, 16,406.82 and 5,388.20

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Solution

The fourth proportional to 10,934.81, 16,406.82 and 5,388.20 is: 8,084.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,934.81 : 16,406.82 = 5,388.20 : x
  2. Step 2: Convert to fraction form
    10,934.81/16,406.82 = 5,388.20/x
  3. Step 3: Cross multiply
    10,934.81x = 16,406.82 × 5,388.20
  4. Step 4: Simplify right side
    10,934.81x = 88,403,145.49
  5. Step 5: Solve for x
    x = 88,403,145.49/10,934.81
  6. Step 6: Final answer
    x = 8,084.57

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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.