Home / 8,106.93-12,155.00-2,912.13

Finding the Fourth Proportional to 8,106.93, 12,155.00 and 2,912.13

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Solution

The fourth proportional to 8,106.93, 12,155.00 and 2,912.13 is: 4,366.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.93 : 12,155.00 = 2,912.13 : x
  2. Step 2: Convert to fraction form
    8,106.93/12,155.00 = 2,912.13/x
  3. Step 3: Cross multiply
    8,106.93x = 12,155.00 × 2,912.13
  4. Step 4: Simplify right side
    8,106.93x = 35,396,925.59
  5. Step 5: Solve for x
    x = 35,396,925.59/8,106.93
  6. Step 6: Final answer
    x = 4,366.26

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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.