Home / 7,400.63-11,089.98-4,109.20

Finding the Fourth Proportional to 7,400.63, 11,089.98 and 4,109.20

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Solution

The fourth proportional to 7,400.63, 11,089.98 and 4,109.20 is: 6,157.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.63 : 11,089.98 = 4,109.20 : x
  2. Step 2: Convert to fraction form
    7,400.63/11,089.98 = 4,109.20/x
  3. Step 3: Cross multiply
    7,400.63x = 11,089.98 × 4,109.20
  4. Step 4: Simplify right side
    7,400.63x = 45,570,918.09
  5. Step 5: Solve for x
    x = 45,570,918.09/7,400.63
  6. Step 6: Final answer
    x = 6,157.71

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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.