Home / 8,143.89-12,209.95-5,504.86

Finding the Fourth Proportional to 8,143.89, 12,209.95 and 5,504.86

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Solution

The fourth proportional to 8,143.89, 12,209.95 and 5,504.86 is: 8,253.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143.89 : 12,209.95 = 5,504.86 : x
  2. Step 2: Convert to fraction form
    8,143.89/12,209.95 = 5,504.86/x
  3. Step 3: Cross multiply
    8,143.89x = 12,209.95 × 5,504.86
  4. Step 4: Simplify right side
    8,143.89x = 67,214,065.36
  5. Step 5: Solve for x
    x = 67,214,065.36/8,143.89
  6. Step 6: Final answer
    x = 8,253.31

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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.