Home / 16,961.40-23,385.22-12,121.91

Finding the Fourth Proportional to 16,961.40, 23,385.22 and 12,121.91

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Solution

The fourth proportional to 16,961.40, 23,385.22 and 12,121.91 is: 16,712.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,961.40 : 23,385.22 = 12,121.91 : x
  2. Step 2: Convert to fraction form
    16,961.40/23,385.22 = 12,121.91/x
  3. Step 3: Cross multiply
    16,961.40x = 23,385.22 × 12,121.91
  4. Step 4: Simplify right side
    16,961.40x = 283,473,532.17
  5. Step 5: Solve for x
    x = 283,473,532.17/16,961.40
  6. Step 6: Final answer
    x = 16,712.86

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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.