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Finding the Fourth Proportional to 10,911.43, 16,375.38 and 8,746.30

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Solution

The fourth proportional to 10,911.43, 16,375.38 and 8,746.30 is: 13,126.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,911.43 : 16,375.38 = 8,746.30 : x
  2. Step 2: Convert to fraction form
    10,911.43/16,375.38 = 8,746.30/x
  3. Step 3: Cross multiply
    10,911.43x = 16,375.38 × 8,746.30
  4. Step 4: Simplify right side
    10,911.43x = 143,223,986.09
  5. Step 5: Solve for x
    x = 143,223,986.09/10,911.43
  6. Step 6: Final answer
    x = 13,126.05

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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.