Home / 11,487.48-17,115.69-10,732.96

Finding the Fourth Proportional to 11,487.48, 17,115.69 and 10,732.96

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Solution

The fourth proportional to 11,487.48, 17,115.69 and 10,732.96 is: 15,991.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,487.48 : 17,115.69 = 10,732.96 : x
  2. Step 2: Convert to fraction form
    11,487.48/17,115.69 = 10,732.96/x
  3. Step 3: Cross multiply
    11,487.48x = 17,115.69 × 10,732.96
  4. Step 4: Simplify right side
    11,487.48x = 183,702,016.14
  5. Step 5: Solve for x
    x = 183,702,016.14/11,487.48
  6. Step 6: Final answer
    x = 15,991.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.