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Finding the Fourth Proportional to 10,843.80, 16,265.70 and 7,150.20

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Solution

The fourth proportional to 10,843.80, 16,265.70 and 7,150.20 is: 10,725.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,843.80 : 16,265.70 = 7,150.20 : x
  2. Step 2: Convert to fraction form
    10,843.80/16,265.70 = 7,150.20/x
  3. Step 3: Cross multiply
    10,843.80x = 16,265.70 × 7,150.20
  4. Step 4: Simplify right side
    10,843.80x = 116,303,008.14
  5. Step 5: Solve for x
    x = 116,303,008.14/10,843.80
  6. Step 6: Final answer
    x = 10,725.30

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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.