Home / 11,318.30-15,619.12-6,282.56

Finding the Fourth Proportional to 11,318.30, 15,619.12 and 6,282.56

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Solution

The fourth proportional to 11,318.30, 15,619.12 and 6,282.56 is: 8,669.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,318.30 : 15,619.12 = 6,282.56 : x
  2. Step 2: Convert to fraction form
    11,318.30/15,619.12 = 6,282.56/x
  3. Step 3: Cross multiply
    11,318.30x = 15,619.12 × 6,282.56
  4. Step 4: Simplify right side
    11,318.30x = 98,128,003.79
  5. Step 5: Solve for x
    x = 98,128,003.79/11,318.30
  6. Step 6: Final answer
    x = 8,669.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.