Home / 13,997.88-21,003.84-6,601.50

Finding the Fourth Proportional to 13,997.88, 21,003.84 and 6,601.50

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Solution

The fourth proportional to 13,997.88, 21,003.84 and 6,601.50 is: 9,905.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997.88 : 21,003.84 = 6,601.50 : x
  2. Step 2: Convert to fraction form
    13,997.88/21,003.84 = 6,601.50/x
  3. Step 3: Cross multiply
    13,997.88x = 21,003.84 × 6,601.50
  4. Step 4: Simplify right side
    13,997.88x = 138,656,849.76
  5. Step 5: Solve for x
    x = 138,656,849.76/13,997.88
  6. Step 6: Final answer
    x = 9,905.56

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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.