Home / 16,821.85-23,215.23-9,268.18

Finding the Fourth Proportional to 16,821.85, 23,215.23 and 9,268.18

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Solution

The fourth proportional to 16,821.85, 23,215.23 and 9,268.18 is: 12,790.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,821.85 : 23,215.23 = 9,268.18 : x
  2. Step 2: Convert to fraction form
    16,821.85/23,215.23 = 9,268.18/x
  3. Step 3: Cross multiply
    16,821.85x = 23,215.23 × 9,268.18
  4. Step 4: Simplify right side
    16,821.85x = 215,162,930.38
  5. Step 5: Solve for x
    x = 215,162,930.38/16,821.85
  6. Step 6: Final answer
    x = 12,790.68

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Double scale
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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.