Home / 15,312.54-22,974.63-7,912.38

Finding the Fourth Proportional to 15,312.54, 22,974.63 and 7,912.38

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Solution

The fourth proportional to 15,312.54, 22,974.63 and 7,912.38 is: 11,871.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312.54 : 22,974.63 = 7,912.38 : x
  2. Step 2: Convert to fraction form
    15,312.54/22,974.63 = 7,912.38/x
  3. Step 3: Cross multiply
    15,312.54x = 22,974.63 × 7,912.38
  4. Step 4: Simplify right side
    15,312.54x = 181,784,002.92
  5. Step 5: Solve for x
    x = 181,784,002.92/15,312.54
  6. Step 6: Final answer
    x = 11,871.58

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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.