Home / 13,115.23-19,655.31-4,787.41

Finding the Fourth Proportional to 13,115.23, 19,655.31 and 4,787.41

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Solution

The fourth proportional to 13,115.23, 19,655.31 and 4,787.41 is: 7,174.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.23 : 19,655.31 = 4,787.41 : x
  2. Step 2: Convert to fraction form
    13,115.23/19,655.31 = 4,787.41/x
  3. Step 3: Cross multiply
    13,115.23x = 19,655.31 × 4,787.41
  4. Step 4: Simplify right side
    13,115.23x = 94,098,027.65
  5. Step 5: Solve for x
    x = 94,098,027.65/13,115.23
  6. Step 6: Final answer
    x = 7,174.71

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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.