Home / 10,926.40-16,391.40-3,532.72

Finding the Fourth Proportional to 10,926.40, 16,391.40 and 3,532.72

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Solution

The fourth proportional to 10,926.40, 16,391.40 and 3,532.72 is: 5,299.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,926.40 : 16,391.40 = 3,532.72 : x
  2. Step 2: Convert to fraction form
    10,926.40/16,391.40 = 3,532.72/x
  3. Step 3: Cross multiply
    10,926.40x = 16,391.40 × 3,532.72
  4. Step 4: Simplify right side
    10,926.40x = 57,906,226.61
  5. Step 5: Solve for x
    x = 57,906,226.61/10,926.40
  6. Step 6: Final answer
    x = 5,299.66

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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.