Home / 7,721.13-11,576.19-3,336.18

Finding the Fourth Proportional to 7,721.13, 11,576.19 and 3,336.18

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Solution

The fourth proportional to 7,721.13, 11,576.19 and 3,336.18 is: 5,001.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.13 : 11,576.19 = 3,336.18 : x
  2. Step 2: Convert to fraction form
    7,721.13/11,576.19 = 3,336.18/x
  3. Step 3: Cross multiply
    7,721.13x = 11,576.19 × 3,336.18
  4. Step 4: Simplify right side
    7,721.13x = 38,620,253.55
  5. Step 5: Solve for x
    x = 38,620,253.55/7,721.13
  6. Step 6: Final answer
    x = 5,001.89

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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.