Home / 10,836.40-16,231.92-8,983.12

Finding the Fourth Proportional to 10,836.40, 16,231.92 and 8,983.12

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Solution

The fourth proportional to 10,836.40, 16,231.92 and 8,983.12 is: 13,455.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,836.40 : 16,231.92 = 8,983.12 : x
  2. Step 2: Convert to fraction form
    10,836.40/16,231.92 = 8,983.12/x
  3. Step 3: Cross multiply
    10,836.40x = 16,231.92 × 8,983.12
  4. Step 4: Simplify right side
    10,836.40x = 145,813,285.19
  5. Step 5: Solve for x
    x = 145,813,285.19/10,836.40
  6. Step 6: Final answer
    x = 13,455.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.