Home / 11,390.22-15,717.72-6,610.30

Finding the Fourth Proportional to 11,390.22, 15,717.72 and 6,610.30

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Solution

The fourth proportional to 11,390.22, 15,717.72 and 6,610.30 is: 9,121.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.22 : 15,717.72 = 6,610.30 : x
  2. Step 2: Convert to fraction form
    11,390.22/15,717.72 = 6,610.30/x
  3. Step 3: Cross multiply
    11,390.22x = 15,717.72 × 6,610.30
  4. Step 4: Simplify right side
    11,390.22x = 103,898,844.52
  5. Step 5: Solve for x
    x = 103,898,844.52/11,390.22
  6. Step 6: Final answer
    x = 9,121.76

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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.