Home / 13,078.44-18,044.10-8,113.32

Finding the Fourth Proportional to 13,078.44, 18,044.10 and 8,113.32

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Solution

The fourth proportional to 13,078.44, 18,044.10 and 8,113.32 is: 11,193.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.44 : 18,044.10 = 8,113.32 : x
  2. Step 2: Convert to fraction form
    13,078.44/18,044.10 = 8,113.32/x
  3. Step 3: Cross multiply
    13,078.44x = 18,044.10 × 8,113.32
  4. Step 4: Simplify right side
    13,078.44x = 146,397,557.41
  5. Step 5: Solve for x
    x = 146,397,557.41/13,078.44
  6. Step 6: Final answer
    x = 11,193.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.