Home / 13,998.56-21,001.48-6,205.52

Finding the Fourth Proportional to 13,998.56, 21,001.48 and 6,205.52

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Solution

The fourth proportional to 13,998.56, 21,001.48 and 6,205.52 is: 9,309.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.56 : 21,001.48 = 6,205.52 : x
  2. Step 2: Convert to fraction form
    13,998.56/21,001.48 = 6,205.52/x
  3. Step 3: Cross multiply
    13,998.56x = 21,001.48 × 6,205.52
  4. Step 4: Simplify right side
    13,998.56x = 130,325,104.17
  5. Step 5: Solve for x
    x = 130,325,104.17/13,998.56
  6. Step 6: Final answer
    x = 9,309.89

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1.5x scale

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.