Home / 10,639.19-15,958.99-3,243.18

Finding the Fourth Proportional to 10,639.19, 15,958.99 and 3,243.18

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Solution

The fourth proportional to 10,639.19, 15,958.99 and 3,243.18 is: 4,864.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.19 : 15,958.99 = 3,243.18 : x
  2. Step 2: Convert to fraction form
    10,639.19/15,958.99 = 3,243.18/x
  3. Step 3: Cross multiply
    10,639.19x = 15,958.99 × 3,243.18
  4. Step 4: Simplify right side
    10,639.19x = 51,757,869.08
  5. Step 5: Solve for x
    x = 51,757,869.08/10,639.19
  6. Step 6: Final answer
    x = 4,864.83

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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.