Home / 12,576.21-17,355.92-7,272.87

Finding the Fourth Proportional to 12,576.21, 17,355.92 and 7,272.87

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Solution

The fourth proportional to 12,576.21, 17,355.92 and 7,272.87 is: 10,036.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.21 : 17,355.92 = 7,272.87 : x
  2. Step 2: Convert to fraction form
    12,576.21/17,355.92 = 7,272.87/x
  3. Step 3: Cross multiply
    12,576.21x = 17,355.92 × 7,272.87
  4. Step 4: Simplify right side
    12,576.21x = 126,227,313.53
  5. Step 5: Solve for x
    x = 126,227,313.53/12,576.21
  6. Step 6: Final answer
    x = 10,036.99

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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.