Home / 26,845.74-40,252.71-8,120.10

Finding the Fourth Proportional to 26,845.74, 40,252.71 and 8,120.10

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Solution

The fourth proportional to 26,845.74, 40,252.71 and 8,120.10 is: 12,175.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,845.74 : 40,252.71 = 8,120.10 : x
  2. Step 2: Convert to fraction form
    26,845.74/40,252.71 = 8,120.10/x
  3. Step 3: Cross multiply
    26,845.74x = 40,252.71 × 8,120.10
  4. Step 4: Simplify right side
    26,845.74x = 326,856,030.47
  5. Step 5: Solve for x
    x = 326,856,030.47/26,845.74
  6. Step 6: Final answer
    x = 12,175.34

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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.