Home / 7,717.47-11,576.13-2,172.36

Finding the Fourth Proportional to 7,717.47, 11,576.13 and 2,172.36

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Solution

The fourth proportional to 7,717.47, 11,576.13 and 2,172.36 is: 3,258.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.47 : 11,576.13 = 2,172.36 : x
  2. Step 2: Convert to fraction form
    7,717.47/11,576.13 = 2,172.36/x
  3. Step 3: Cross multiply
    7,717.47x = 11,576.13 × 2,172.36
  4. Step 4: Simplify right side
    7,717.47x = 25,147,521.77
  5. Step 5: Solve for x
    x = 25,147,521.77/7,717.47
  6. Step 6: Final answer
    x = 3,258.52

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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.