Home / 10,508.85-15,766.64-3,113.36

Finding the Fourth Proportional to 10,508.85, 15,766.64 and 3,113.36

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Solution

The fourth proportional to 10,508.85, 15,766.64 and 3,113.36 is: 4,671.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,508.85 : 15,766.64 = 3,113.36 : x
  2. Step 2: Convert to fraction form
    10,508.85/15,766.64 = 3,113.36/x
  3. Step 3: Cross multiply
    10,508.85x = 15,766.64 × 3,113.36
  4. Step 4: Simplify right side
    10,508.85x = 49,087,131.91
  5. Step 5: Solve for x
    x = 49,087,131.91/10,508.85
  6. Step 6: Final answer
    x = 4,671.03

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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.