Home / 10,134.15-15,201.21-3,113.88

Finding the Fourth Proportional to 10,134.15, 15,201.21 and 3,113.88

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Solution

The fourth proportional to 10,134.15, 15,201.21 and 3,113.88 is: 4,670.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,134.15 : 15,201.21 = 3,113.88 : x
  2. Step 2: Convert to fraction form
    10,134.15/15,201.21 = 3,113.88/x
  3. Step 3: Cross multiply
    10,134.15x = 15,201.21 × 3,113.88
  4. Step 4: Simplify right side
    10,134.15x = 47,334,743.79
  5. Step 5: Solve for x
    x = 47,334,743.79/10,134.15
  6. Step 6: Final answer
    x = 4,670.82

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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.