Home / 7,967.31-11,951.64-2,123.93

Finding the Fourth Proportional to 7,967.31, 11,951.64 and 2,123.93

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Solution

The fourth proportional to 7,967.31, 11,951.64 and 2,123.93 is: 3,186.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,967.31 : 11,951.64 = 2,123.93 : x
  2. Step 2: Convert to fraction form
    7,967.31/11,951.64 = 2,123.93/x
  3. Step 3: Cross multiply
    7,967.31x = 11,951.64 × 2,123.93
  4. Step 4: Simplify right side
    7,967.31x = 25,384,386.99
  5. Step 5: Solve for x
    x = 25,384,386.99/7,967.31
  6. Step 6: Final answer
    x = 3,186.07

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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.