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Finding the Fourth Proportional to 8,911.10, 13,366.89 and 6,834.87

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Solution

The fourth proportional to 8,911.10, 13,366.89 and 6,834.87 is: 10,252.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.10 : 13,366.89 = 6,834.87 : x
  2. Step 2: Convert to fraction form
    8,911.10/13,366.89 = 6,834.87/x
  3. Step 3: Cross multiply
    8,911.10x = 13,366.89 × 6,834.87
  4. Step 4: Simplify right side
    8,911.10x = 91,360,955.45
  5. Step 5: Solve for x
    x = 91,360,955.45/8,911.10
  6. Step 6: Final answer
    x = 10,252.49

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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.