Home / 10,312.85-15,469.67-2,917.96

Finding the Fourth Proportional to 10,312.85, 15,469.67 and 2,917.96

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Solution

The fourth proportional to 10,312.85, 15,469.67 and 2,917.96 is: 4,377.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,312.85 : 15,469.67 = 2,917.96 : x
  2. Step 2: Convert to fraction form
    10,312.85/15,469.67 = 2,917.96/x
  3. Step 3: Cross multiply
    10,312.85x = 15,469.67 × 2,917.96
  4. Step 4: Simplify right side
    10,312.85x = 45,139,846.89
  5. Step 5: Solve for x
    x = 45,139,846.89/10,312.85
  6. Step 6: Final answer
    x = 4,377.05

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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.