Home / 10,122.02-15,183.03-5,188.51

Finding the Fourth Proportional to 10,122.02, 15,183.03 and 5,188.51

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Solution

The fourth proportional to 10,122.02, 15,183.03 and 5,188.51 is: 7,782.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,122.02 : 15,183.03 = 5,188.51 : x
  2. Step 2: Convert to fraction form
    10,122.02/15,183.03 = 5,188.51/x
  3. Step 3: Cross multiply
    10,122.02x = 15,183.03 × 5,188.51
  4. Step 4: Simplify right side
    10,122.02x = 78,777,321.96
  5. Step 5: Solve for x
    x = 78,777,321.96/10,122.02
  6. Step 6: Final answer
    x = 7,782.77

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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.