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Finding the Fourth Proportional to 10,891.70, 16,337.56 and 3,100.51

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Solution

The fourth proportional to 10,891.70, 16,337.56 and 3,100.51 is: 4,650.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891.70 : 16,337.56 = 3,100.51 : x
  2. Step 2: Convert to fraction form
    10,891.70/16,337.56 = 3,100.51/x
  3. Step 3: Cross multiply
    10,891.70x = 16,337.56 × 3,100.51
  4. Step 4: Simplify right side
    10,891.70x = 50,654,768.16
  5. Step 5: Solve for x
    x = 50,654,768.16/10,891.70
  6. Step 6: Final answer
    x = 4,650.77

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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.