Home / 18,381.98-25,359.77-12,006.39

Finding the Fourth Proportional to 18,381.98, 25,359.77 and 12,006.39

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Solution

The fourth proportional to 18,381.98, 25,359.77 and 12,006.39 is: 16,564.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.98 : 25,359.77 = 12,006.39 : x
  2. Step 2: Convert to fraction form
    18,381.98/25,359.77 = 12,006.39/x
  3. Step 3: Cross multiply
    18,381.98x = 25,359.77 × 12,006.39
  4. Step 4: Simplify right side
    18,381.98x = 304,479,228.90
  5. Step 5: Solve for x
    x = 304,479,228.90/18,381.98
  6. Step 6: Final answer
    x = 16,564.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.