Home / 8,078.13-12,113.24-3,333.40

Finding the Fourth Proportional to 8,078.13, 12,113.24 and 3,333.40

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Solution

The fourth proportional to 8,078.13, 12,113.24 and 3,333.40 is: 4,998.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.13 : 12,113.24 = 3,333.40 : x
  2. Step 2: Convert to fraction form
    8,078.13/12,113.24 = 3,333.40/x
  3. Step 3: Cross multiply
    8,078.13x = 12,113.24 × 3,333.40
  4. Step 4: Simplify right side
    8,078.13x = 40,378,274.22
  5. Step 5: Solve for x
    x = 40,378,274.22/8,078.13
  6. Step 6: Final answer
    x = 4,998.47

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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.