Home / 10,508.65-15,765.26-3,113.66

Finding the Fourth Proportional to 10,508.65, 15,765.26 and 3,113.66

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Solution

The fourth proportional to 10,508.65, 15,765.26 and 3,113.66 is: 4,671.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,508.65 : 15,765.26 = 3,113.66 : x
  2. Step 2: Convert to fraction form
    10,508.65/15,765.26 = 3,113.66/x
  3. Step 3: Cross multiply
    10,508.65x = 15,765.26 × 3,113.66
  4. Step 4: Simplify right side
    10,508.65x = 49,087,683.30
  5. Step 5: Solve for x
    x = 49,087,683.30/10,508.65
  6. Step 6: Final answer
    x = 4,671.17

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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.