Home / 11,715.48-17,609.40-7,844.76

Finding the Fourth Proportional to 11,715.48, 17,609.40 and 7,844.76

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Solution

The fourth proportional to 11,715.48, 17,609.40 and 7,844.76 is: 11,791.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,715.48 : 17,609.40 = 7,844.76 : x
  2. Step 2: Convert to fraction form
    11,715.48/17,609.40 = 7,844.76/x
  3. Step 3: Cross multiply
    11,715.48x = 17,609.40 × 7,844.76
  4. Step 4: Simplify right side
    11,715.48x = 138,141,516.74
  5. Step 5: Solve for x
    x = 138,141,516.74/11,715.48
  6. Step 6: Final answer
    x = 11,791.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.