Home / 7,118.83-10,687.97-4,780.36

Finding the Fourth Proportional to 7,118.83, 10,687.97 and 4,780.36

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Solution

The fourth proportional to 7,118.83, 10,687.97 and 4,780.36 is: 7,177.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118.83 : 10,687.97 = 4,780.36 : x
  2. Step 2: Convert to fraction form
    7,118.83/10,687.97 = 4,780.36/x
  3. Step 3: Cross multiply
    7,118.83x = 10,687.97 × 4,780.36
  4. Step 4: Simplify right side
    7,118.83x = 51,092,344.27
  5. Step 5: Solve for x
    x = 51,092,344.27/7,118.83
  6. Step 6: Final answer
    x = 7,177.07

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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.