Home / 10,150.80-15,209.73-5,213.58

Finding the Fourth Proportional to 10,150.80, 15,209.73 and 5,213.58

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Solution

The fourth proportional to 10,150.80, 15,209.73 and 5,213.58 is: 7,811.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,150.80 : 15,209.73 = 5,213.58 : x
  2. Step 2: Convert to fraction form
    10,150.80/15,209.73 = 5,213.58/x
  3. Step 3: Cross multiply
    10,150.80x = 15,209.73 × 5,213.58
  4. Step 4: Simplify right side
    10,150.80x = 79,297,144.13
  5. Step 5: Solve for x
    x = 79,297,144.13/10,150.80
  6. Step 6: Final answer
    x = 7,811.91

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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.