Home / 10,215.48-15,324.15-3,975.96

Finding the Fourth Proportional to 10,215.48, 15,324.15 and 3,975.96

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Solution

The fourth proportional to 10,215.48, 15,324.15 and 3,975.96 is: 5,964.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,215.48 : 15,324.15 = 3,975.96 : x
  2. Step 2: Convert to fraction form
    10,215.48/15,324.15 = 3,975.96/x
  3. Step 3: Cross multiply
    10,215.48x = 15,324.15 × 3,975.96
  4. Step 4: Simplify right side
    10,215.48x = 60,928,207.43
  5. Step 5: Solve for x
    x = 60,928,207.43/10,215.48
  6. Step 6: Final answer
    x = 5,964.30

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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.