Home / 10,087.08-15,138-5,160.84

Finding the Fourth Proportional to 10,087.08, 15,138 and 5,160.84

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Solution

The fourth proportional to 10,087.08, 15,138 and 5,160.84 is: 7,745.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.08 : 15,138 = 5,160.84 : x
  2. Step 2: Convert to fraction form
    10,087.08/15,138 = 5,160.84/x
  3. Step 3: Cross multiply
    10,087.08x = 15,138 × 5,160.84
  4. Step 4: Simplify right side
    10,087.08x = 78,124,795.92
  5. Step 5: Solve for x
    x = 78,124,795.92/10,087.08
  6. Step 6: Final answer
    x = 7,745.04

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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.