Home / 12,132.23-18,204.62-6,288.89

Finding the Fourth Proportional to 12,132.23, 18,204.62 and 6,288.89

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Solution

The fourth proportional to 12,132.23, 18,204.62 and 6,288.89 is: 9,436.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.23 : 18,204.62 = 6,288.89 : x
  2. Step 2: Convert to fraction form
    12,132.23/18,204.62 = 6,288.89/x
  3. Step 3: Cross multiply
    12,132.23x = 18,204.62 × 6,288.89
  4. Step 4: Simplify right side
    12,132.23x = 114,486,730.20
  5. Step 5: Solve for x
    x = 114,486,730.20/12,132.23
  6. Step 6: Final answer
    x = 9,436.58

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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.