Home / 11,015.19-15,194.60-7,031.81

Finding the Fourth Proportional to 11,015.19, 15,194.60 and 7,031.81

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Solution

The fourth proportional to 11,015.19, 15,194.60 and 7,031.81 is: 9,699.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,015.19 : 15,194.60 = 7,031.81 : x
  2. Step 2: Convert to fraction form
    11,015.19/15,194.60 = 7,031.81/x
  3. Step 3: Cross multiply
    11,015.19x = 15,194.60 × 7,031.81
  4. Step 4: Simplify right side
    11,015.19x = 106,845,505.07
  5. Step 5: Solve for x
    x = 106,845,505.07/11,015.19
  6. Step 6: Final answer
    x = 9,699.83

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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.