Home / 9,940.13-13,719.20-5,748.38

Finding the Fourth Proportional to 9,940.13, 13,719.20 and 5,748.38

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Solution

The fourth proportional to 9,940.13, 13,719.20 and 5,748.38 is: 7,933.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,940.13 : 13,719.20 = 5,748.38 : x
  2. Step 2: Convert to fraction form
    9,940.13/13,719.20 = 5,748.38/x
  3. Step 3: Cross multiply
    9,940.13x = 13,719.20 × 5,748.38
  4. Step 4: Simplify right side
    9,940.13x = 78,863,077.56
  5. Step 5: Solve for x
    x = 78,863,077.56/9,940.13
  6. Step 6: Final answer
    x = 7,933.81

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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.