Home / 10,811.68-16,211.61-4,881.60

Finding the Fourth Proportional to 10,811.68, 16,211.61 and 4,881.60

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Solution

The fourth proportional to 10,811.68, 16,211.61 and 4,881.60 is: 7,319.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,811.68 : 16,211.61 = 4,881.60 : x
  2. Step 2: Convert to fraction form
    10,811.68/16,211.61 = 4,881.60/x
  3. Step 3: Cross multiply
    10,811.68x = 16,211.61 × 4,881.60
  4. Step 4: Simplify right side
    10,811.68x = 79,138,595.38
  5. Step 5: Solve for x
    x = 79,138,595.38/10,811.68
  6. Step 6: Final answer
    x = 7,319.73

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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.