Home / 13,911.26-20,864.86-4,047.89

Finding the Fourth Proportional to 13,911.26, 20,864.86 and 4,047.89

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Solution

The fourth proportional to 13,911.26, 20,864.86 and 4,047.89 is: 6,071.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.26 : 20,864.86 = 4,047.89 : x
  2. Step 2: Convert to fraction form
    13,911.26/20,864.86 = 4,047.89/x
  3. Step 3: Cross multiply
    13,911.26x = 20,864.86 × 4,047.89
  4. Step 4: Simplify right side
    13,911.26x = 84,458,543.70
  5. Step 5: Solve for x
    x = 84,458,543.70/13,911.26
  6. Step 6: Final answer
    x = 6,071.24

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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.