Home / 7,819.74-11,729.61-3,199.50

Finding the Fourth Proportional to 7,819.74, 11,729.61 and 3,199.50

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Solution

The fourth proportional to 7,819.74, 11,729.61 and 3,199.50 is: 4,799.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.74 : 11,729.61 = 3,199.50 : x
  2. Step 2: Convert to fraction form
    7,819.74/11,729.61 = 3,199.50/x
  3. Step 3: Cross multiply
    7,819.74x = 11,729.61 × 3,199.50
  4. Step 4: Simplify right side
    7,819.74x = 37,528,887.20
  5. Step 5: Solve for x
    x = 37,528,887.20/7,819.74
  6. Step 6: Final answer
    x = 4,799.25

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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.