Home / 10,992.38-15,168.84-6,516.56

Finding the Fourth Proportional to 10,992.38, 15,168.84 and 6,516.56

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Solution

The fourth proportional to 10,992.38, 15,168.84 and 6,516.56 is: 8,992.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.38 : 15,168.84 = 6,516.56 : x
  2. Step 2: Convert to fraction form
    10,992.38/15,168.84 = 6,516.56/x
  3. Step 3: Cross multiply
    10,992.38x = 15,168.84 × 6,516.56
  4. Step 4: Simplify right side
    10,992.38x = 98,848,655.99
  5. Step 5: Solve for x
    x = 98,848,655.99/10,992.38
  6. Step 6: Final answer
    x = 8,992.47

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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.