Home / 9,131.40-13,696.04-2,558.12

Finding the Fourth Proportional to 9,131.40, 13,696.04 and 2,558.12

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Solution

The fourth proportional to 9,131.40, 13,696.04 and 2,558.12 is: 3,836.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,131.40 : 13,696.04 = 2,558.12 : x
  2. Step 2: Convert to fraction form
    9,131.40/13,696.04 = 2,558.12/x
  3. Step 3: Cross multiply
    9,131.40x = 13,696.04 × 2,558.12
  4. Step 4: Simplify right side
    9,131.40x = 35,036,045.36
  5. Step 5: Solve for x
    x = 35,036,045.36/9,131.40
  6. Step 6: Final answer
    x = 3,836.88

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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.