Home / 7,287.20-10,905.60-4,367.60

Finding the Fourth Proportional to 7,287.20, 10,905.60 and 4,367.60

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Solution

The fourth proportional to 7,287.20, 10,905.60 and 4,367.60 is: 6,536.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,287.20 : 10,905.60 = 4,367.60 : x
  2. Step 2: Convert to fraction form
    7,287.20/10,905.60 = 4,367.60/x
  3. Step 3: Cross multiply
    7,287.20x = 10,905.60 × 4,367.60
  4. Step 4: Simplify right side
    7,287.20x = 47,631,298.56
  5. Step 5: Solve for x
    x = 47,631,298.56/7,287.20
  6. Step 6: Final answer
    x = 6,536.30

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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.