Home / 16,122.60-22,256.82-12,145.32

Finding the Fourth Proportional to 16,122.60, 22,256.82 and 12,145.32

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Solution

The fourth proportional to 16,122.60, 22,256.82 and 12,145.32 is: 16,766.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,122.60 : 22,256.82 = 12,145.32 : x
  2. Step 2: Convert to fraction form
    16,122.60/22,256.82 = 12,145.32/x
  3. Step 3: Cross multiply
    16,122.60x = 22,256.82 × 12,145.32
  4. Step 4: Simplify right side
    16,122.60x = 270,316,201.08
  5. Step 5: Solve for x
    x = 270,316,201.08/16,122.60
  6. Step 6: Final answer
    x = 16,766.29

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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.