Home / 8,100.36-12,145.43-3,417.95

Finding the Fourth Proportional to 8,100.36, 12,145.43 and 3,417.95

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Solution

The fourth proportional to 8,100.36, 12,145.43 and 3,417.95 is: 5,124.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,100.36 : 12,145.43 = 3,417.95 : x
  2. Step 2: Convert to fraction form
    8,100.36/12,145.43 = 3,417.95/x
  3. Step 3: Cross multiply
    8,100.36x = 12,145.43 × 3,417.95
  4. Step 4: Simplify right side
    8,100.36x = 41,512,394.65
  5. Step 5: Solve for x
    x = 41,512,394.65/8,100.36
  6. Step 6: Final answer
    x = 5,124.76

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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.