Home / 10,982.45-15,155.49-6,137.21

Finding the Fourth Proportional to 10,982.45, 15,155.49 and 6,137.21

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Solution

The fourth proportional to 10,982.45, 15,155.49 and 6,137.21 is: 8,469.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,982.45 : 15,155.49 = 6,137.21 : x
  2. Step 2: Convert to fraction form
    10,982.45/15,155.49 = 6,137.21/x
  3. Step 3: Cross multiply
    10,982.45x = 15,155.49 × 6,137.21
  4. Step 4: Simplify right side
    10,982.45x = 93,012,462.67
  5. Step 5: Solve for x
    x = 93,012,462.67/10,982.45
  6. Step 6: Final answer
    x = 8,469.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.