Home / 16,682.28-23,022.18-9,231.72

Finding the Fourth Proportional to 16,682.28, 23,022.18 and 9,231.72

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Solution

The fourth proportional to 16,682.28, 23,022.18 and 9,231.72 is: 12,740.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,682.28 : 23,022.18 = 9,231.72 : x
  2. Step 2: Convert to fraction form
    16,682.28/23,022.18 = 9,231.72/x
  3. Step 3: Cross multiply
    16,682.28x = 23,022.18 × 9,231.72
  4. Step 4: Simplify right side
    16,682.28x = 212,534,319.55
  5. Step 5: Solve for x
    x = 212,534,319.55/16,682.28
  6. Step 6: Final answer
    x = 12,740.12

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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.