Home / 13,448.16-20,174.76-4,212

Finding the Fourth Proportional to 13,448.16, 20,174.76 and 4,212

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Solution

The fourth proportional to 13,448.16, 20,174.76 and 4,212 is: 6,318.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.16 : 20,174.76 = 4,212 : x
  2. Step 2: Convert to fraction form
    13,448.16/20,174.76 = 4,212/x
  3. Step 3: Cross multiply
    13,448.16x = 20,174.76 × 4,212
  4. Step 4: Simplify right side
    13,448.16x = 84,976,089.12
  5. Step 5: Solve for x
    x = 84,976,089.12/13,448.16
  6. Step 6: Final answer
    x = 6,318.79

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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.