Home / 15,593.39-21,517.75-8,518.31

Finding the Fourth Proportional to 15,593.39, 21,517.75 and 8,518.31

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Solution

The fourth proportional to 15,593.39, 21,517.75 and 8,518.31 is: 11,754.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,593.39 : 21,517.75 = 8,518.31 : x
  2. Step 2: Convert to fraction form
    15,593.39/21,517.75 = 8,518.31/x
  3. Step 3: Cross multiply
    15,593.39x = 21,517.75 × 8,518.31
  4. Step 4: Simplify right side
    15,593.39x = 183,294,865.00
  5. Step 5: Solve for x
    x = 183,294,865.00/15,593.39
  6. Step 6: Final answer
    x = 11,754.65

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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.