Home / 9,322.72-12,865.44-5,131

Finding the Fourth Proportional to 9,322.72, 12,865.44 and 5,131

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Solution

The fourth proportional to 9,322.72, 12,865.44 and 5,131 is: 7,080.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,322.72 : 12,865.44 = 5,131 : x
  2. Step 2: Convert to fraction form
    9,322.72/12,865.44 = 5,131/x
  3. Step 3: Cross multiply
    9,322.72x = 12,865.44 × 5,131
  4. Step 4: Simplify right side
    9,322.72x = 66,012,572.64
  5. Step 5: Solve for x
    x = 66,012,572.64/9,322.72
  6. Step 6: Final answer
    x = 7,080.83

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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.