Home / 8,106.15-12,151.93-2,910.81

Finding the Fourth Proportional to 8,106.15, 12,151.93 and 2,910.81

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Solution

The fourth proportional to 8,106.15, 12,151.93 and 2,910.81 is: 4,363.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.15 : 12,151.93 = 2,910.81 : x
  2. Step 2: Convert to fraction form
    8,106.15/12,151.93 = 2,910.81/x
  3. Step 3: Cross multiply
    8,106.15x = 12,151.93 × 2,910.81
  4. Step 4: Simplify right side
    8,106.15x = 35,371,959.36
  5. Step 5: Solve for x
    x = 35,371,959.36/8,106.15
  6. Step 6: Final answer
    x = 4,363.60

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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.