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Finding the Fourth Proportional to 8,958, 13,371.25 and 8,298.26

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Solution

The fourth proportional to 8,958, 13,371.25 and 8,298.26 is: 12,386.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958 : 13,371.25 = 8,298.26 : x
  2. Step 2: Convert to fraction form
    8,958/13,371.25 = 8,298.26/x
  3. Step 3: Cross multiply
    8,958x = 13,371.25 × 8,298.26
  4. Step 4: Simplify right side
    8,958x = 110,958,109.03
  5. Step 5: Solve for x
    x = 110,958,109.03/8,958
  6. Step 6: Final answer
    x = 12,386.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.