Home / 11,164.37-15,407.46-6,691.28

Finding the Fourth Proportional to 11,164.37, 15,407.46 and 6,691.28

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Solution

The fourth proportional to 11,164.37, 15,407.46 and 6,691.28 is: 9,234.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,164.37 : 15,407.46 = 6,691.28 : x
  2. Step 2: Convert to fraction form
    11,164.37/15,407.46 = 6,691.28/x
  3. Step 3: Cross multiply
    11,164.37x = 15,407.46 × 6,691.28
  4. Step 4: Simplify right side
    11,164.37x = 103,095,551.91
  5. Step 5: Solve for x
    x = 103,095,551.91/11,164.37
  6. Step 6: Final answer
    x = 9,234.34

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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.