Home / 11,110.52-15,334.08-7,142.96

Finding the Fourth Proportional to 11,110.52, 15,334.08 and 7,142.96

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Solution

The fourth proportional to 11,110.52, 15,334.08 and 7,142.96 is: 9,858.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,110.52 : 15,334.08 = 7,142.96 : x
  2. Step 2: Convert to fraction form
    11,110.52/15,334.08 = 7,142.96/x
  3. Step 3: Cross multiply
    11,110.52x = 15,334.08 × 7,142.96
  4. Step 4: Simplify right side
    11,110.52x = 109,530,720.08
  5. Step 5: Solve for x
    x = 109,530,720.08/11,110.52
  6. Step 6: Final answer
    x = 9,858.29

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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.