Home / 11,221.83-15,490.08-6,976.26

Finding the Fourth Proportional to 11,221.83, 15,490.08 and 6,976.26

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Solution

The fourth proportional to 11,221.83, 15,490.08 and 6,976.26 is: 9,629.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.83 : 15,490.08 = 6,976.26 : x
  2. Step 2: Convert to fraction form
    11,221.83/15,490.08 = 6,976.26/x
  3. Step 3: Cross multiply
    11,221.83x = 15,490.08 × 6,976.26
  4. Step 4: Simplify right side
    11,221.83x = 108,062,825.50
  5. Step 5: Solve for x
    x = 108,062,825.50/11,221.83
  6. Step 6: Final answer
    x = 9,629.70

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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.