Home / 12,083.67-18,132.80-4,291.88

Finding the Fourth Proportional to 12,083.67, 18,132.80 and 4,291.88

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Solution

The fourth proportional to 12,083.67, 18,132.80 and 4,291.88 is: 6,440.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,083.67 : 18,132.80 = 4,291.88 : x
  2. Step 2: Convert to fraction form
    12,083.67/18,132.80 = 4,291.88/x
  3. Step 3: Cross multiply
    12,083.67x = 18,132.80 × 4,291.88
  4. Step 4: Simplify right side
    12,083.67x = 77,823,689.54
  5. Step 5: Solve for x
    x = 77,823,689.54/12,083.67
  6. Step 6: Final answer
    x = 6,440.40

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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.