Home / 10,248.75-15,379.26-5,318.37

Finding the Fourth Proportional to 10,248.75, 15,379.26 and 5,318.37

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Solution

The fourth proportional to 10,248.75, 15,379.26 and 5,318.37 is: 7,980.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,248.75 : 15,379.26 = 5,318.37 : x
  2. Step 2: Convert to fraction form
    10,248.75/15,379.26 = 5,318.37/x
  3. Step 3: Cross multiply
    10,248.75x = 15,379.26 × 5,318.37
  4. Step 4: Simplify right side
    10,248.75x = 81,792,595.01
  5. Step 5: Solve for x
    x = 81,792,595.01/10,248.75
  6. Step 6: Final answer
    x = 7,980.74

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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.