Home / 11,318.85-15,619.95-6,214.32

Finding the Fourth Proportional to 11,318.85, 15,619.95 and 6,214.32

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Solution

The fourth proportional to 11,318.85, 15,619.95 and 6,214.32 is: 8,575.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,318.85 : 15,619.95 = 6,214.32 : x
  2. Step 2: Convert to fraction form
    11,318.85/15,619.95 = 6,214.32/x
  3. Step 3: Cross multiply
    11,318.85x = 15,619.95 × 6,214.32
  4. Step 4: Simplify right side
    11,318.85x = 97,067,367.68
  5. Step 5: Solve for x
    x = 97,067,367.68/11,318.85
  6. Step 6: Final answer
    x = 8,575.73

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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.