Home / 15,553.39-21,464.12-9,504.61

Finding the Fourth Proportional to 15,553.39, 21,464.12 and 9,504.61

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Solution

The fourth proportional to 15,553.39, 21,464.12 and 9,504.61 is: 13,116.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553.39 : 21,464.12 = 9,504.61 : x
  2. Step 2: Convert to fraction form
    15,553.39/21,464.12 = 9,504.61/x
  3. Step 3: Cross multiply
    15,553.39x = 21,464.12 × 9,504.61
  4. Step 4: Simplify right side
    15,553.39x = 204,008,089.59
  5. Step 5: Solve for x
    x = 204,008,089.59/15,553.39
  6. Step 6: Final answer
    x = 13,116.63

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1.5x scale

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.