Home / 10,005.13-15,016.79-5,329.06

Finding the Fourth Proportional to 10,005.13, 15,016.79 and 5,329.06

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Solution

The fourth proportional to 10,005.13, 15,016.79 and 5,329.06 is: 7,998.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,005.13 : 15,016.79 = 5,329.06 : x
  2. Step 2: Convert to fraction form
    10,005.13/15,016.79 = 5,329.06/x
  3. Step 3: Cross multiply
    10,005.13x = 15,016.79 × 5,329.06
  4. Step 4: Simplify right side
    10,005.13x = 80,025,374.92
  5. Step 5: Solve for x
    x = 80,025,374.92/10,005.13
  6. Step 6: Final answer
    x = 7,998.43

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1.5x scale

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.