Home / 7,860.99-11,768.09-5,079.55

Finding the Fourth Proportional to 7,860.99, 11,768.09 and 5,079.55

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Solution

The fourth proportional to 7,860.99, 11,768.09 and 5,079.55 is: 7,604.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860.99 : 11,768.09 = 5,079.55 : x
  2. Step 2: Convert to fraction form
    7,860.99/11,768.09 = 5,079.55/x
  3. Step 3: Cross multiply
    7,860.99x = 11,768.09 × 5,079.55
  4. Step 4: Simplify right side
    7,860.99x = 59,776,601.56
  5. Step 5: Solve for x
    x = 59,776,601.56/7,860.99
  6. Step 6: Final answer
    x = 7,604.21

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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.