Home / 8,117.06-12,175.33-3,435.80

Finding the Fourth Proportional to 8,117.06, 12,175.33 and 3,435.80

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Solution

The fourth proportional to 8,117.06, 12,175.33 and 3,435.80 is: 5,153.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,117.06 : 12,175.33 = 3,435.80 : x
  2. Step 2: Convert to fraction form
    8,117.06/12,175.33 = 3,435.80/x
  3. Step 3: Cross multiply
    8,117.06x = 12,175.33 × 3,435.80
  4. Step 4: Simplify right side
    8,117.06x = 41,831,998.81
  5. Step 5: Solve for x
    x = 41,831,998.81/8,117.06
  6. Step 6: Final answer
    x = 5,153.59

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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.