Home / 10,808.79-16,211.85-2,911.93

Finding the Fourth Proportional to 10,808.79, 16,211.85 and 2,911.93

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Solution

The fourth proportional to 10,808.79, 16,211.85 and 2,911.93 is: 4,367.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,808.79 : 16,211.85 = 2,911.93 : x
  2. Step 2: Convert to fraction form
    10,808.79/16,211.85 = 2,911.93/x
  3. Step 3: Cross multiply
    10,808.79x = 16,211.85 × 2,911.93
  4. Step 4: Simplify right side
    10,808.79x = 47,207,812.11
  5. Step 5: Solve for x
    x = 47,207,812.11/10,808.79
  6. Step 6: Final answer
    x = 4,367.54

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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.