Home / 10,318.68-15,479.64-3,391.56

Finding the Fourth Proportional to 10,318.68, 15,479.64 and 3,391.56

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Solution

The fourth proportional to 10,318.68, 15,479.64 and 3,391.56 is: 5,087.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,318.68 : 15,479.64 = 3,391.56 : x
  2. Step 2: Convert to fraction form
    10,318.68/15,479.64 = 3,391.56/x
  3. Step 3: Cross multiply
    10,318.68x = 15,479.64 × 3,391.56
  4. Step 4: Simplify right side
    10,318.68x = 52,500,127.84
  5. Step 5: Solve for x
    x = 52,500,127.84/10,318.68
  6. Step 6: Final answer
    x = 5,087.87

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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.