Home / 11,878.60-17,817.98-3,113.44

Finding the Fourth Proportional to 11,878.60, 17,817.98 and 3,113.44

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Solution

The fourth proportional to 11,878.60, 17,817.98 and 3,113.44 is: 4,670.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,878.60 : 17,817.98 = 3,113.44 : x
  2. Step 2: Convert to fraction form
    11,878.60/17,817.98 = 3,113.44/x
  3. Step 3: Cross multiply
    11,878.60x = 17,817.98 × 3,113.44
  4. Step 4: Simplify right side
    11,878.60x = 55,475,151.54
  5. Step 5: Solve for x
    x = 55,475,151.54/11,878.60
  6. Step 6: Final answer
    x = 4,670.18

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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.