Home / 7,788.60-11,674.80-4,273.20

Finding the Fourth Proportional to 7,788.60, 11,674.80 and 4,273.20

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Solution

The fourth proportional to 7,788.60, 11,674.80 and 4,273.20 is: 6,405.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.60 : 11,674.80 = 4,273.20 : x
  2. Step 2: Convert to fraction form
    7,788.60/11,674.80 = 4,273.20/x
  3. Step 3: Cross multiply
    7,788.60x = 11,674.80 × 4,273.20
  4. Step 4: Simplify right side
    7,788.60x = 49,888,755.36
  5. Step 5: Solve for x
    x = 49,888,755.36/7,788.60
  6. Step 6: Final answer
    x = 6,405.36

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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.