Home / 11,286.91-15,580.11-6,810.85

Finding the Fourth Proportional to 11,286.91, 15,580.11 and 6,810.85

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Solution

The fourth proportional to 11,286.91, 15,580.11 and 6,810.85 is: 9,401.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.91 : 15,580.11 = 6,810.85 : x
  2. Step 2: Convert to fraction form
    11,286.91/15,580.11 = 6,810.85/x
  3. Step 3: Cross multiply
    11,286.91x = 15,580.11 × 6,810.85
  4. Step 4: Simplify right side
    11,286.91x = 106,113,792.19
  5. Step 5: Solve for x
    x = 106,113,792.19/11,286.91
  6. Step 6: Final answer
    x = 9,401.49

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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.