Home / 7,869.09-11,815.26-5,252.89

Finding the Fourth Proportional to 7,869.09, 11,815.26 and 5,252.89

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Solution

The fourth proportional to 7,869.09, 11,815.26 and 5,252.89 is: 7,887.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.09 : 11,815.26 = 5,252.89 : x
  2. Step 2: Convert to fraction form
    7,869.09/11,815.26 = 5,252.89/x
  3. Step 3: Cross multiply
    7,869.09x = 11,815.26 × 5,252.89
  4. Step 4: Simplify right side
    7,869.09x = 62,064,261.10
  5. Step 5: Solve for x
    x = 62,064,261.10/7,869.09
  6. Step 6: Final answer
    x = 7,887.10

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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.