Home / 10,091.84-15,137.92-5,147.52

Finding the Fourth Proportional to 10,091.84, 15,137.92 and 5,147.52

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Solution

The fourth proportional to 10,091.84, 15,137.92 and 5,147.52 is: 7,721.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,091.84 : 15,137.92 = 5,147.52 : x
  2. Step 2: Convert to fraction form
    10,091.84/15,137.92 = 5,147.52/x
  3. Step 3: Cross multiply
    10,091.84x = 15,137.92 × 5,147.52
  4. Step 4: Simplify right side
    10,091.84x = 77,922,745.96
  5. Step 5: Solve for x
    x = 77,922,745.96/10,091.84
  6. Step 6: Final answer
    x = 7,721.36

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1.5x scale

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.