Home / 13,998.88-21,005.34-6,602.50

Finding the Fourth Proportional to 13,998.88, 21,005.34 and 6,602.50

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Solution

The fourth proportional to 13,998.88, 21,005.34 and 6,602.50 is: 9,907.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.88 : 21,005.34 = 6,602.50 : x
  2. Step 2: Convert to fraction form
    13,998.88/21,005.34 = 6,602.50/x
  3. Step 3: Cross multiply
    13,998.88x = 21,005.34 × 6,602.50
  4. Step 4: Simplify right side
    13,998.88x = 138,687,757.35
  5. Step 5: Solve for x
    x = 138,687,757.35/13,998.88
  6. Step 6: Final answer
    x = 9,907.06

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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.