Home / 7,487.15-11,231.30-4,367.47

Finding the Fourth Proportional to 7,487.15, 11,231.30 and 4,367.47

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Solution

The fourth proportional to 7,487.15, 11,231.30 and 4,367.47 is: 6,551.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.15 : 11,231.30 = 4,367.47 : x
  2. Step 2: Convert to fraction form
    7,487.15/11,231.30 = 4,367.47/x
  3. Step 3: Cross multiply
    7,487.15x = 11,231.30 × 4,367.47
  4. Step 4: Simplify right side
    7,487.15x = 49,052,365.81
  5. Step 5: Solve for x
    x = 49,052,365.81/7,487.15
  6. Step 6: Final answer
    x = 6,551.54

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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.