Home / 12,002.14-18,003.30-11,984.86

Finding the Fourth Proportional to 12,002.14, 18,003.30 and 11,984.86

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Solution

The fourth proportional to 12,002.14, 18,003.30 and 11,984.86 is: 17,977.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,002.14 : 18,003.30 = 11,984.86 : x
  2. Step 2: Convert to fraction form
    12,002.14/18,003.30 = 11,984.86/x
  3. Step 3: Cross multiply
    12,002.14x = 18,003.30 × 11,984.86
  4. Step 4: Simplify right side
    12,002.14x = 215,767,030.04
  5. Step 5: Solve for x
    x = 215,767,030.04/12,002.14
  6. Step 6: Final answer
    x = 17,977.38

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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.