Home / 9,123.65-13,690.88-3,858.36

Finding the Fourth Proportional to 9,123.65, 13,690.88 and 3,858.36

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Solution

The fourth proportional to 9,123.65, 13,690.88 and 3,858.36 is: 5,789.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,123.65 : 13,690.88 = 3,858.36 : x
  2. Step 2: Convert to fraction form
    9,123.65/13,690.88 = 3,858.36/x
  3. Step 3: Cross multiply
    9,123.65x = 13,690.88 × 3,858.36
  4. Step 4: Simplify right side
    9,123.65x = 52,824,324.47
  5. Step 5: Solve for x
    x = 52,824,324.47/9,123.65
  6. Step 6: Final answer
    x = 5,789.83

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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.