Home / 7,412.30-11,123-3,904.84

Finding the Fourth Proportional to 7,412.30, 11,123 and 3,904.84

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Solution

The fourth proportional to 7,412.30, 11,123 and 3,904.84 is: 5,859.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,412.30 : 11,123 = 3,904.84 : x
  2. Step 2: Convert to fraction form
    7,412.30/11,123 = 3,904.84/x
  3. Step 3: Cross multiply
    7,412.30x = 11,123 × 3,904.84
  4. Step 4: Simplify right side
    7,412.30x = 43,433,535.32
  5. Step 5: Solve for x
    x = 43,433,535.32/7,412.30
  6. Step 6: Final answer
    x = 5,859.66

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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.