Home / 11,153.59-15,388.85-7,967.86

Finding the Fourth Proportional to 11,153.59, 15,388.85 and 7,967.86

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Solution

The fourth proportional to 11,153.59, 15,388.85 and 7,967.86 is: 10,993.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.59 : 15,388.85 = 7,967.86 : x
  2. Step 2: Convert to fraction form
    11,153.59/15,388.85 = 7,967.86/x
  3. Step 3: Cross multiply
    11,153.59x = 15,388.85 × 7,967.86
  4. Step 4: Simplify right side
    11,153.59x = 122,616,183.81
  5. Step 5: Solve for x
    x = 122,616,183.81/11,153.59
  6. Step 6: Final answer
    x = 10,993.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.