Home / 11,055.70-15,245.17-8,538.22

Finding the Fourth Proportional to 11,055.70, 15,245.17 and 8,538.22

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Solution

The fourth proportional to 11,055.70, 15,245.17 and 8,538.22 is: 11,773.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,055.70 : 15,245.17 = 8,538.22 : x
  2. Step 2: Convert to fraction form
    11,055.70/15,245.17 = 8,538.22/x
  3. Step 3: Cross multiply
    11,055.70x = 15,245.17 × 8,538.22
  4. Step 4: Simplify right side
    11,055.70x = 130,166,615.40
  5. Step 5: Solve for x
    x = 130,166,615.40/11,055.70
  6. Step 6: Final answer
    x = 11,773.71

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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.