Home / 15,305.16-22,945.09-5,815.51

Finding the Fourth Proportional to 15,305.16, 22,945.09 and 5,815.51

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Solution

The fourth proportional to 15,305.16, 22,945.09 and 5,815.51 is: 8,718.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,305.16 : 22,945.09 = 5,815.51 : x
  2. Step 2: Convert to fraction form
    15,305.16/22,945.09 = 5,815.51/x
  3. Step 3: Cross multiply
    15,305.16x = 22,945.09 × 5,815.51
  4. Step 4: Simplify right side
    15,305.16x = 133,437,474.38
  5. Step 5: Solve for x
    x = 133,437,474.38/15,305.16
  6. Step 6: Final answer
    x = 8,718.46

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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.