Home / 10,121.40-15,183.36-3,548.16

Finding the Fourth Proportional to 10,121.40, 15,183.36 and 3,548.16

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Solution

The fourth proportional to 10,121.40, 15,183.36 and 3,548.16 is: 5,322.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121.40 : 15,183.36 = 3,548.16 : x
  2. Step 2: Convert to fraction form
    10,121.40/15,183.36 = 3,548.16/x
  3. Step 3: Cross multiply
    10,121.40x = 15,183.36 × 3,548.16
  4. Step 4: Simplify right side
    10,121.40x = 53,872,990.62
  5. Step 5: Solve for x
    x = 53,872,990.62/10,121.40
  6. Step 6: Final answer
    x = 5,322.68

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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.