Home / 10,916.60-16,375.28-3,518.88

Finding the Fourth Proportional to 10,916.60, 16,375.28 and 3,518.88

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Solution

The fourth proportional to 10,916.60, 16,375.28 and 3,518.88 is: 5,278.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.60 : 16,375.28 = 3,518.88 : x
  2. Step 2: Convert to fraction form
    10,916.60/16,375.28 = 3,518.88/x
  3. Step 3: Cross multiply
    10,916.60x = 16,375.28 × 3,518.88
  4. Step 4: Simplify right side
    10,916.60x = 57,622,645.29
  5. Step 5: Solve for x
    x = 57,622,645.29/10,916.60
  6. Step 6: Final answer
    x = 5,278.44

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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.