Home / 13,997.98-21,000.75-5,233.78

Finding the Fourth Proportional to 13,997.98, 21,000.75 and 5,233.78

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Solution

The fourth proportional to 13,997.98, 21,000.75 and 5,233.78 is: 7,852.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997.98 : 21,000.75 = 5,233.78 : x
  2. Step 2: Convert to fraction form
    13,997.98/21,000.75 = 5,233.78/x
  3. Step 3: Cross multiply
    13,997.98x = 21,000.75 × 5,233.78
  4. Step 4: Simplify right side
    13,997.98x = 109,913,305.34
  5. Step 5: Solve for x
    x = 109,913,305.34/13,997.98
  6. Step 6: Final answer
    x = 7,852.08

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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.