Home / 10,508.47-15,765.75-3,113.07

Finding the Fourth Proportional to 10,508.47, 15,765.75 and 3,113.07

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Solution

The fourth proportional to 10,508.47, 15,765.75 and 3,113.07 is: 4,670.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,508.47 : 15,765.75 = 3,113.07 : x
  2. Step 2: Convert to fraction form
    10,508.47/15,765.75 = 3,113.07/x
  3. Step 3: Cross multiply
    10,508.47x = 15,765.75 × 3,113.07
  4. Step 4: Simplify right side
    10,508.47x = 49,079,883.35
  5. Step 5: Solve for x
    x = 49,079,883.35/10,508.47
  6. Step 6: Final answer
    x = 4,670.51

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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.