Home / 13,988.31-20,997.05-6,202.59

Finding the Fourth Proportional to 13,988.31, 20,997.05 and 6,202.59

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Solution

The fourth proportional to 13,988.31, 20,997.05 and 6,202.59 is: 9,310.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.31 : 20,997.05 = 6,202.59 : x
  2. Step 2: Convert to fraction form
    13,988.31/20,997.05 = 6,202.59/x
  3. Step 3: Cross multiply
    13,988.31x = 20,997.05 × 6,202.59
  4. Step 4: Simplify right side
    13,988.31x = 130,236,092.36
  5. Step 5: Solve for x
    x = 130,236,092.36/13,988.31
  6. Step 6: Final answer
    x = 9,310.35

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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.