Home / 11,114.56-15,339.60-7,146.96

Finding the Fourth Proportional to 11,114.56, 15,339.60 and 7,146.96

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Solution

The fourth proportional to 11,114.56, 15,339.60 and 7,146.96 is: 9,863.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,114.56 : 15,339.60 = 7,146.96 : x
  2. Step 2: Convert to fraction form
    11,114.56/15,339.60 = 7,146.96/x
  3. Step 3: Cross multiply
    11,114.56x = 15,339.60 × 7,146.96
  4. Step 4: Simplify right side
    11,114.56x = 109,631,507.62
  5. Step 5: Solve for x
    x = 109,631,507.62/11,114.56
  6. Step 6: Final answer
    x = 9,863.77

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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.