Home / 11,162.10-15,399.64-7,335.80

Finding the Fourth Proportional to 11,162.10, 15,399.64 and 7,335.80

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Solution

The fourth proportional to 11,162.10, 15,399.64 and 7,335.80 is: 10,120.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,162.10 : 15,399.64 = 7,335.80 : x
  2. Step 2: Convert to fraction form
    11,162.10/15,399.64 = 7,335.80/x
  3. Step 3: Cross multiply
    11,162.10x = 15,399.64 × 7,335.80
  4. Step 4: Simplify right side
    11,162.10x = 112,968,627.77
  5. Step 5: Solve for x
    x = 112,968,627.77/11,162.10
  6. Step 6: Final answer
    x = 10,120.73

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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.