Home / 13,999.88-21,006.84-6,603.50

Finding the Fourth Proportional to 13,999.88, 21,006.84 and 6,603.50

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Solution

The fourth proportional to 13,999.88, 21,006.84 and 6,603.50 is: 9,908.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999.88 : 21,006.84 = 6,603.50 : x
  2. Step 2: Convert to fraction form
    13,999.88/21,006.84 = 6,603.50/x
  3. Step 3: Cross multiply
    13,999.88x = 21,006.84 × 6,603.50
  4. Step 4: Simplify right side
    13,999.88x = 138,718,667.94
  5. Step 5: Solve for x
    x = 138,718,667.94/13,999.88
  6. Step 6: Final answer
    x = 9,908.56

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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.