Home / 12,729.08-19,095.38-5,331.82

Finding the Fourth Proportional to 12,729.08, 19,095.38 and 5,331.82

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Solution

The fourth proportional to 12,729.08, 19,095.38 and 5,331.82 is: 7,998.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,729.08 : 19,095.38 = 5,331.82 : x
  2. Step 2: Convert to fraction form
    12,729.08/19,095.38 = 5,331.82/x
  3. Step 3: Cross multiply
    12,729.08x = 19,095.38 × 5,331.82
  4. Step 4: Simplify right side
    12,729.08x = 101,813,128.99
  5. Step 5: Solve for x
    x = 101,813,128.99/12,729.08
  6. Step 6: Final answer
    x = 7,998.47

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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.