Home / 13,655.88-20,440.89-9,414.36

Finding the Fourth Proportional to 13,655.88, 20,440.89 and 9,414.36

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Solution

The fourth proportional to 13,655.88, 20,440.89 and 9,414.36 is: 14,091.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.88 : 20,440.89 = 9,414.36 : x
  2. Step 2: Convert to fraction form
    13,655.88/20,440.89 = 9,414.36/x
  3. Step 3: Cross multiply
    13,655.88x = 20,440.89 × 9,414.36
  4. Step 4: Simplify right side
    13,655.88x = 192,437,897.18
  5. Step 5: Solve for x
    x = 192,437,897.18/13,655.88
  6. Step 6: Final answer
    x = 14,091.94

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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.