Home / 15,679.18-23,518.78-5,290.94

Finding the Fourth Proportional to 15,679.18, 23,518.78 and 5,290.94

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Solution

The fourth proportional to 15,679.18, 23,518.78 and 5,290.94 is: 7,936.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,679.18 : 23,518.78 = 5,290.94 : x
  2. Step 2: Convert to fraction form
    15,679.18/23,518.78 = 5,290.94/x
  3. Step 3: Cross multiply
    15,679.18x = 23,518.78 × 5,290.94
  4. Step 4: Simplify right side
    15,679.18x = 124,436,453.85
  5. Step 5: Solve for x
    x = 124,436,453.85/15,679.18
  6. Step 6: Final answer
    x = 7,936.41

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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.