Home / 10,111.87-15,158.22-3,533.78

Finding the Fourth Proportional to 10,111.87, 15,158.22 and 3,533.78

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Solution

The fourth proportional to 10,111.87, 15,158.22 and 3,533.78 is: 5,297.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,111.87 : 15,158.22 = 3,533.78 : x
  2. Step 2: Convert to fraction form
    10,111.87/15,158.22 = 3,533.78/x
  3. Step 3: Cross multiply
    10,111.87x = 15,158.22 × 3,533.78
  4. Step 4: Simplify right side
    10,111.87x = 53,565,814.67
  5. Step 5: Solve for x
    x = 53,565,814.67/10,111.87
  6. Step 6: Final answer
    x = 5,297.32

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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.