Home / 10,876.68-16,316.64-3,478.95

Finding the Fourth Proportional to 10,876.68, 16,316.64 and 3,478.95

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Solution

The fourth proportional to 10,876.68, 16,316.64 and 3,478.95 is: 5,218.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,876.68 : 16,316.64 = 3,478.95 : x
  2. Step 2: Convert to fraction form
    10,876.68/16,316.64 = 3,478.95/x
  3. Step 3: Cross multiply
    10,876.68x = 16,316.64 × 3,478.95
  4. Step 4: Simplify right side
    10,876.68x = 56,764,774.73
  5. Step 5: Solve for x
    x = 56,764,774.73/10,876.68
  6. Step 6: Final answer
    x = 5,218.94

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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.