Home / 10,487.09-15,727.50-3,091.38

Finding the Fourth Proportional to 10,487.09, 15,727.50 and 3,091.38

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Solution

The fourth proportional to 10,487.09, 15,727.50 and 3,091.38 is: 4,636.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,487.09 : 15,727.50 = 3,091.38 : x
  2. Step 2: Convert to fraction form
    10,487.09/15,727.50 = 3,091.38/x
  3. Step 3: Cross multiply
    10,487.09x = 15,727.50 × 3,091.38
  4. Step 4: Simplify right side
    10,487.09x = 48,619,678.95
  5. Step 5: Solve for x
    x = 48,619,678.95/10,487.09
  6. Step 6: Final answer
    x = 4,636.15

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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.