Home / 13,129.14-18,121.96-7,466.94

Finding the Fourth Proportional to 13,129.14, 18,121.96 and 7,466.94

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Solution

The fourth proportional to 13,129.14, 18,121.96 and 7,466.94 is: 10,306.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129.14 : 18,121.96 = 7,466.94 : x
  2. Step 2: Convert to fraction form
    13,129.14/18,121.96 = 7,466.94/x
  3. Step 3: Cross multiply
    13,129.14x = 18,121.96 × 7,466.94
  4. Step 4: Simplify right side
    13,129.14x = 135,315,588.00
  5. Step 5: Solve for x
    x = 135,315,588.00/13,129.14
  6. Step 6: Final answer
    x = 10,306.51

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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.