Home / 11,076.30-15,276.66-7,097.79

Finding the Fourth Proportional to 11,076.30, 15,276.66 and 7,097.79

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Solution

The fourth proportional to 11,076.30, 15,276.66 and 7,097.79 is: 9,789.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,076.30 : 15,276.66 = 7,097.79 : x
  2. Step 2: Convert to fraction form
    11,076.30/15,276.66 = 7,097.79/x
  3. Step 3: Cross multiply
    11,076.30x = 15,276.66 × 7,097.79
  4. Step 4: Simplify right side
    11,076.30x = 108,430,477.78
  5. Step 5: Solve for x
    x = 108,430,477.78/11,076.30
  6. Step 6: Final answer
    x = 9,789.41

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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.