Home / 10,309.48-15,465.35-3,287.86

Finding the Fourth Proportional to 10,309.48, 15,465.35 and 3,287.86

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Solution

The fourth proportional to 10,309.48, 15,465.35 and 3,287.86 is: 4,932.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,309.48 : 15,465.35 = 3,287.86 : x
  2. Step 2: Convert to fraction form
    10,309.48/15,465.35 = 3,287.86/x
  3. Step 3: Cross multiply
    10,309.48x = 15,465.35 × 3,287.86
  4. Step 4: Simplify right side
    10,309.48x = 50,847,905.65
  5. Step 5: Solve for x
    x = 50,847,905.65/10,309.48
  6. Step 6: Final answer
    x = 4,932.15

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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.