Home / 7,859.12-11,764.85-5,080.19

Finding the Fourth Proportional to 7,859.12, 11,764.85 and 5,080.19

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Solution

The fourth proportional to 7,859.12, 11,764.85 and 5,080.19 is: 7,604.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,859.12 : 11,764.85 = 5,080.19 : x
  2. Step 2: Convert to fraction form
    7,859.12/11,764.85 = 5,080.19/x
  3. Step 3: Cross multiply
    7,859.12x = 11,764.85 × 5,080.19
  4. Step 4: Simplify right side
    7,859.12x = 59,767,589.10
  5. Step 5: Solve for x
    x = 59,767,589.10/7,859.12
  6. Step 6: Final answer
    x = 7,604.88

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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.