Home / 8,921.39-13,382.99-3,077.24

Finding the Fourth Proportional to 8,921.39, 13,382.99 and 3,077.24

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Solution

The fourth proportional to 8,921.39, 13,382.99 and 3,077.24 is: 4,616.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.39 : 13,382.99 = 3,077.24 : x
  2. Step 2: Convert to fraction form
    8,921.39/13,382.99 = 3,077.24/x
  3. Step 3: Cross multiply
    8,921.39x = 13,382.99 × 3,077.24
  4. Step 4: Simplify right side
    8,921.39x = 41,182,605.23
  5. Step 5: Solve for x
    x = 41,182,605.23/8,921.39
  6. Step 6: Final answer
    x = 4,616.17

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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.