Home / 16,919.20-23,344.56-9,841.60

Finding the Fourth Proportional to 16,919.20, 23,344.56 and 9,841.60

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Solution

The fourth proportional to 16,919.20, 23,344.56 and 9,841.60 is: 13,579.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,919.20 : 23,344.56 = 9,841.60 : x
  2. Step 2: Convert to fraction form
    16,919.20/23,344.56 = 9,841.60/x
  3. Step 3: Cross multiply
    16,919.20x = 23,344.56 × 9,841.60
  4. Step 4: Simplify right side
    16,919.20x = 229,747,821.70
  5. Step 5: Solve for x
    x = 229,747,821.70/16,919.20
  6. Step 6: Final answer
    x = 13,579.12

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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.