Home / 10,240.32-15,351.36-3,998.87

Finding the Fourth Proportional to 10,240.32, 15,351.36 and 3,998.87

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Solution

The fourth proportional to 10,240.32, 15,351.36 and 3,998.87 is: 5,994.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,240.32 : 15,351.36 = 3,998.87 : x
  2. Step 2: Convert to fraction form
    10,240.32/15,351.36 = 3,998.87/x
  3. Step 3: Cross multiply
    10,240.32x = 15,351.36 × 3,998.87
  4. Step 4: Simplify right side
    10,240.32x = 61,388,016.21
  5. Step 5: Solve for x
    x = 61,388,016.21/10,240.32
  6. Step 6: Final answer
    x = 5,994.74

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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.