Home / 9,131.28-12,601.16-4,939.52

Finding the Fourth Proportional to 9,131.28, 12,601.16 and 4,939.52

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Solution

The fourth proportional to 9,131.28, 12,601.16 and 4,939.52 is: 6,816.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,131.28 : 12,601.16 = 4,939.52 : x
  2. Step 2: Convert to fraction form
    9,131.28/12,601.16 = 4,939.52/x
  3. Step 3: Cross multiply
    9,131.28x = 12,601.16 × 4,939.52
  4. Step 4: Simplify right side
    9,131.28x = 62,243,681.84
  5. Step 5: Solve for x
    x = 62,243,681.84/9,131.28
  6. Step 6: Final answer
    x = 6,816.53

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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.