Home / 7,518.31-11,278.07-2,587.94

Finding the Fourth Proportional to 7,518.31, 11,278.07 and 2,587.94

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Solution

The fourth proportional to 7,518.31, 11,278.07 and 2,587.94 is: 3,882.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518.31 : 11,278.07 = 2,587.94 : x
  2. Step 2: Convert to fraction form
    7,518.31/11,278.07 = 2,587.94/x
  3. Step 3: Cross multiply
    7,518.31x = 11,278.07 × 2,587.94
  4. Step 4: Simplify right side
    7,518.31x = 29,186,955.54
  5. Step 5: Solve for x
    x = 29,186,955.54/7,518.31
  6. Step 6: Final answer
    x = 3,882.12

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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.