Home / 12,869.26-19,304.08-5,078

Finding the Fourth Proportional to 12,869.26, 19,304.08 and 5,078

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Solution

The fourth proportional to 12,869.26, 19,304.08 and 5,078 is: 7,617.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,869.26 : 19,304.08 = 5,078 : x
  2. Step 2: Convert to fraction form
    12,869.26/19,304.08 = 5,078/x
  3. Step 3: Cross multiply
    12,869.26x = 19,304.08 × 5,078
  4. Step 4: Simplify right side
    12,869.26x = 98,026,118.24
  5. Step 5: Solve for x
    x = 98,026,118.24/12,869.26
  6. Step 6: Final answer
    x = 7,617.07

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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.