Home / 10,664.46-15,992.64-5,114.34

Finding the Fourth Proportional to 10,664.46, 15,992.64 and 5,114.34

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Solution

The fourth proportional to 10,664.46, 15,992.64 and 5,114.34 is: 7,669.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,664.46 : 15,992.64 = 5,114.34 : x
  2. Step 2: Convert to fraction form
    10,664.46/15,992.64 = 5,114.34/x
  3. Step 3: Cross multiply
    10,664.46x = 15,992.64 × 5,114.34
  4. Step 4: Simplify right side
    10,664.46x = 81,791,798.46
  5. Step 5: Solve for x
    x = 81,791,798.46/10,664.46
  6. Step 6: Final answer
    x = 7,669.57

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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.