Home / 10,909.72-15,055.32-6,193.96

Finding the Fourth Proportional to 10,909.72, 15,055.32 and 6,193.96

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Solution

The fourth proportional to 10,909.72, 15,055.32 and 6,193.96 is: 8,547.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.72 : 15,055.32 = 6,193.96 : x
  2. Step 2: Convert to fraction form
    10,909.72/15,055.32 = 6,193.96/x
  3. Step 3: Cross multiply
    10,909.72x = 15,055.32 × 6,193.96
  4. Step 4: Simplify right side
    10,909.72x = 93,252,049.87
  5. Step 5: Solve for x
    x = 93,252,049.87/10,909.72
  6. Step 6: Final answer
    x = 8,547.61

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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.