Home / 7,679.00-11,518.52-5,207.69

Finding the Fourth Proportional to 7,679.00, 11,518.52 and 5,207.69

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Solution

The fourth proportional to 7,679.00, 11,518.52 and 5,207.69 is: 7,811.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,679.00 : 11,518.52 = 5,207.69 : x
  2. Step 2: Convert to fraction form
    7,679.00/11,518.52 = 5,207.69/x
  3. Step 3: Cross multiply
    7,679.00x = 11,518.52 × 5,207.69
  4. Step 4: Simplify right side
    7,679.00x = 59,984,884.18
  5. Step 5: Solve for x
    x = 59,984,884.18/7,679.00
  6. Step 6: Final answer
    x = 7,811.55

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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.