Home / 15,592.24-21,517.78-8,518.51

Finding the Fourth Proportional to 15,592.24, 21,517.78 and 8,518.51

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Solution

The fourth proportional to 15,592.24, 21,517.78 and 8,518.51 is: 11,755.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,592.24 : 21,517.78 = 8,518.51 : x
  2. Step 2: Convert to fraction form
    15,592.24/21,517.78 = 8,518.51/x
  3. Step 3: Cross multiply
    15,592.24x = 21,517.78 × 8,518.51
  4. Step 4: Simplify right side
    15,592.24x = 183,299,349.02
  5. Step 5: Solve for x
    x = 183,299,349.02/15,592.24
  6. Step 6: Final answer
    x = 11,755.81

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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.