Home / 6,615.11-9,129.03-3,630.92

Finding the Fourth Proportional to 6,615.11, 9,129.03 and 3,630.92

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Solution

The fourth proportional to 6,615.11, 9,129.03 and 3,630.92 is: 5,010.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.11 : 9,129.03 = 3,630.92 : x
  2. Step 2: Convert to fraction form
    6,615.11/9,129.03 = 3,630.92/x
  3. Step 3: Cross multiply
    6,615.11x = 9,129.03 × 3,630.92
  4. Step 4: Simplify right side
    6,615.11x = 33,146,800.43
  5. Step 5: Solve for x
    x = 33,146,800.43/6,615.11
  6. Step 6: Final answer
    x = 5,010.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.