Home / 12,002.76-18,006.14-3,681.96

Finding the Fourth Proportional to 12,002.76, 18,006.14 and 3,681.96

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Solution

The fourth proportional to 12,002.76, 18,006.14 and 3,681.96 is: 5,523.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,002.76 : 18,006.14 = 3,681.96 : x
  2. Step 2: Convert to fraction form
    12,002.76/18,006.14 = 3,681.96/x
  3. Step 3: Cross multiply
    12,002.76x = 18,006.14 × 3,681.96
  4. Step 4: Simplify right side
    12,002.76x = 66,297,887.23
  5. Step 5: Solve for x
    x = 66,297,887.23/12,002.76
  6. Step 6: Final answer
    x = 5,523.55

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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.