Home / 13,565.75-20,349.29-4,212.14

Finding the Fourth Proportional to 13,565.75, 20,349.29 and 4,212.14

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Solution

The fourth proportional to 13,565.75, 20,349.29 and 4,212.14 is: 6,318.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.75 : 20,349.29 = 4,212.14 : x
  2. Step 2: Convert to fraction form
    13,565.75/20,349.29 = 4,212.14/x
  3. Step 3: Cross multiply
    13,565.75x = 20,349.29 × 4,212.14
  4. Step 4: Simplify right side
    13,565.75x = 85,713,967.16
  5. Step 5: Solve for x
    x = 85,713,967.16/13,565.75
  6. Step 6: Final answer
    x = 6,318.41

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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.