Home / 10,911.12-16,366.65-2,905.89

Finding the Fourth Proportional to 10,911.12, 16,366.65 and 2,905.89

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Solution

The fourth proportional to 10,911.12, 16,366.65 and 2,905.89 is: 4,358.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,911.12 : 16,366.65 = 2,905.89 : x
  2. Step 2: Convert to fraction form
    10,911.12/16,366.65 = 2,905.89/x
  3. Step 3: Cross multiply
    10,911.12x = 16,366.65 × 2,905.89
  4. Step 4: Simplify right side
    10,911.12x = 47,559,684.57
  5. Step 5: Solve for x
    x = 47,559,684.57/10,911.12
  6. Step 6: Final answer
    x = 4,358.83

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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.