Home / 10,205.12-15,313.53-3,964.33

Finding the Fourth Proportional to 10,205.12, 15,313.53 and 3,964.33

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Solution

The fourth proportional to 10,205.12, 15,313.53 and 3,964.33 is: 5,948.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,205.12 : 15,313.53 = 3,964.33 : x
  2. Step 2: Convert to fraction form
    10,205.12/15,313.53 = 3,964.33/x
  3. Step 3: Cross multiply
    10,205.12x = 15,313.53 × 3,964.33
  4. Step 4: Simplify right side
    10,205.12x = 60,707,920.39
  5. Step 5: Solve for x
    x = 60,707,920.39/10,205.12
  6. Step 6: Final answer
    x = 5,948.77

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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.