Home / 10,257.62-15,379.14-5,261.50

Finding the Fourth Proportional to 10,257.62, 15,379.14 and 5,261.50

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Solution

The fourth proportional to 10,257.62, 15,379.14 and 5,261.50 is: 7,888.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,257.62 : 15,379.14 = 5,261.50 : x
  2. Step 2: Convert to fraction form
    10,257.62/15,379.14 = 5,261.50/x
  3. Step 3: Cross multiply
    10,257.62x = 15,379.14 × 5,261.50
  4. Step 4: Simplify right side
    10,257.62x = 80,917,345.11
  5. Step 5: Solve for x
    x = 80,917,345.11/10,257.62
  6. Step 6: Final answer
    x = 7,888.51

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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.