Home / 7,419.15-11,115.90-3,903.93

Finding the Fourth Proportional to 7,419.15, 11,115.90 and 3,903.93

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Solution

The fourth proportional to 7,419.15, 11,115.90 and 3,903.93 is: 5,849.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.15 : 11,115.90 = 3,903.93 : x
  2. Step 2: Convert to fraction form
    7,419.15/11,115.90 = 3,903.93/x
  3. Step 3: Cross multiply
    7,419.15x = 11,115.90 × 3,903.93
  4. Step 4: Simplify right side
    7,419.15x = 43,395,695.49
  5. Step 5: Solve for x
    x = 43,395,695.49/7,419.15
  6. Step 6: Final answer
    x = 5,849.15

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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.