Home / 16,891.90-23,310.70-9,439.90

Finding the Fourth Proportional to 16,891.90, 23,310.70 and 9,439.90

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Solution

The fourth proportional to 16,891.90, 23,310.70 and 9,439.90 is: 13,026.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,891.90 : 23,310.70 = 9,439.90 : x
  2. Step 2: Convert to fraction form
    16,891.90/23,310.70 = 9,439.90/x
  3. Step 3: Cross multiply
    16,891.90x = 23,310.70 × 9,439.90
  4. Step 4: Simplify right side
    16,891.90x = 220,050,676.93
  5. Step 5: Solve for x
    x = 220,050,676.93/16,891.90
  6. Step 6: Final answer
    x = 13,026.99

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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.