Home / 11,162.36-15,405.26-7,132.86

Finding the Fourth Proportional to 11,162.36, 15,405.26 and 7,132.86

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Solution

The fourth proportional to 11,162.36, 15,405.26 and 7,132.86 is: 9,844.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,162.36 : 15,405.26 = 7,132.86 : x
  2. Step 2: Convert to fraction form
    11,162.36/15,405.26 = 7,132.86/x
  3. Step 3: Cross multiply
    11,162.36x = 15,405.26 × 7,132.86
  4. Step 4: Simplify right side
    11,162.36x = 109,883,562.84
  5. Step 5: Solve for x
    x = 109,883,562.84/11,162.36
  6. Step 6: Final answer
    x = 9,844.12

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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.