Home / 10,913.61-16,370.41-3,519.17

Finding the Fourth Proportional to 10,913.61, 16,370.41 and 3,519.17

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Solution

The fourth proportional to 10,913.61, 16,370.41 and 3,519.17 is: 5,278.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.61 : 16,370.41 = 3,519.17 : x
  2. Step 2: Convert to fraction form
    10,913.61/16,370.41 = 3,519.17/x
  3. Step 3: Cross multiply
    10,913.61x = 16,370.41 × 3,519.17
  4. Step 4: Simplify right side
    10,913.61x = 57,610,255.76
  5. Step 5: Solve for x
    x = 57,610,255.76/10,913.61
  6. Step 6: Final answer
    x = 5,278.75

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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.