Home / 12,664.56-18,985.32-5,736.24

Finding the Fourth Proportional to 12,664.56, 18,985.32 and 5,736.24

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Solution

The fourth proportional to 12,664.56, 18,985.32 and 5,736.24 is: 8,599.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.56 : 18,985.32 = 5,736.24 : x
  2. Step 2: Convert to fraction form
    12,664.56/18,985.32 = 5,736.24/x
  3. Step 3: Cross multiply
    12,664.56x = 18,985.32 × 5,736.24
  4. Step 4: Simplify right side
    12,664.56x = 108,904,352.00
  5. Step 5: Solve for x
    x = 108,904,352.00/12,664.56
  6. Step 6: Final answer
    x = 8,599.14

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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.