Home / 8,696.88-13,045.68-2,123.28

Finding the Fourth Proportional to 8,696.88, 13,045.68 and 2,123.28

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Solution

The fourth proportional to 8,696.88, 13,045.68 and 2,123.28 is: 3,185.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,696.88 : 13,045.68 = 2,123.28 : x
  2. Step 2: Convert to fraction form
    8,696.88/13,045.68 = 2,123.28/x
  3. Step 3: Cross multiply
    8,696.88x = 13,045.68 × 2,123.28
  4. Step 4: Simplify right side
    8,696.88x = 27,699,631.43
  5. Step 5: Solve for x
    x = 27,699,631.43/8,696.88
  6. Step 6: Final answer
    x = 3,185.01

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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.