Home / 11,009.22-15,187.07-6,969.20

Finding the Fourth Proportional to 11,009.22, 15,187.07 and 6,969.20

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Solution

The fourth proportional to 11,009.22, 15,187.07 and 6,969.20 is: 9,613.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,009.22 : 15,187.07 = 6,969.20 : x
  2. Step 2: Convert to fraction form
    11,009.22/15,187.07 = 6,969.20/x
  3. Step 3: Cross multiply
    11,009.22x = 15,187.07 × 6,969.20
  4. Step 4: Simplify right side
    11,009.22x = 105,841,669.73
  5. Step 5: Solve for x
    x = 105,841,669.73/11,009.22
  6. Step 6: Final answer
    x = 9,613.91

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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.