Home / 8,619.30-11,894.31-5,267.72

Finding the Fourth Proportional to 8,619.30, 11,894.31 and 5,267.72

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Solution

The fourth proportional to 8,619.30, 11,894.31 and 5,267.72 is: 7,269.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.30 : 11,894.31 = 5,267.72 : x
  2. Step 2: Convert to fraction form
    8,619.30/11,894.31 = 5,267.72/x
  3. Step 3: Cross multiply
    8,619.30x = 11,894.31 × 5,267.72
  4. Step 4: Simplify right side
    8,619.30x = 62,655,894.67
  5. Step 5: Solve for x
    x = 62,655,894.67/8,619.30
  6. Step 6: Final answer
    x = 7,269.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.