Home / 7,538.64-11,309.86-4,421.25

Finding the Fourth Proportional to 7,538.64, 11,309.86 and 4,421.25

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Solution

The fourth proportional to 7,538.64, 11,309.86 and 4,421.25 is: 6,632.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,538.64 : 11,309.86 = 4,421.25 : x
  2. Step 2: Convert to fraction form
    7,538.64/11,309.86 = 4,421.25/x
  3. Step 3: Cross multiply
    7,538.64x = 11,309.86 × 4,421.25
  4. Step 4: Simplify right side
    7,538.64x = 50,003,724.05
  5. Step 5: Solve for x
    x = 50,003,724.05/7,538.64
  6. Step 6: Final answer
    x = 6,632.99

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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.