Home / 9,131.64-12,601.68-4,939.92

Finding the Fourth Proportional to 9,131.64, 12,601.68 and 4,939.92

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Solution

The fourth proportional to 9,131.64, 12,601.68 and 4,939.92 is: 6,817.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,131.64 : 12,601.68 = 4,939.92 : x
  2. Step 2: Convert to fraction form
    9,131.64/12,601.68 = 4,939.92/x
  3. Step 3: Cross multiply
    9,131.64x = 12,601.68 × 4,939.92
  4. Step 4: Simplify right side
    9,131.64x = 62,251,291.07
  5. Step 5: Solve for x
    x = 62,251,291.07/9,131.64
  6. Step 6: Final answer
    x = 6,817.10

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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.