Home / 7,987.35-11,976.70-3,599.67

Finding the Fourth Proportional to 7,987.35, 11,976.70 and 3,599.67

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Solution

The fourth proportional to 7,987.35, 11,976.70 and 3,599.67 is: 5,397.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,987.35 : 11,976.70 = 3,599.67 : x
  2. Step 2: Convert to fraction form
    7,987.35/11,976.70 = 3,599.67/x
  3. Step 3: Cross multiply
    7,987.35x = 11,976.70 × 3,599.67
  4. Step 4: Simplify right side
    7,987.35x = 43,112,167.69
  5. Step 5: Solve for x
    x = 43,112,167.69/7,987.35
  6. Step 6: Final answer
    x = 5,397.56

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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.