Home / 10,512.66-15,760.68-7,215.96

Finding the Fourth Proportional to 10,512.66, 15,760.68 and 7,215.96

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Solution

The fourth proportional to 10,512.66, 15,760.68 and 7,215.96 is: 10,818.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.66 : 15,760.68 = 7,215.96 : x
  2. Step 2: Convert to fraction form
    10,512.66/15,760.68 = 7,215.96/x
  3. Step 3: Cross multiply
    10,512.66x = 15,760.68 × 7,215.96
  4. Step 4: Simplify right side
    10,512.66x = 113,728,436.45
  5. Step 5: Solve for x
    x = 113,728,436.45/10,512.66
  6. Step 6: Final answer
    x = 10,818.24

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1.5x scale

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.