Home / 13,763.13-18,993.52-7,475.91

Finding the Fourth Proportional to 13,763.13, 18,993.52 and 7,475.91

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Solution

The fourth proportional to 13,763.13, 18,993.52 and 7,475.91 is: 10,316.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.13 : 18,993.52 = 7,475.91 : x
  2. Step 2: Convert to fraction form
    13,763.13/18,993.52 = 7,475.91/x
  3. Step 3: Cross multiply
    13,763.13x = 18,993.52 × 7,475.91
  4. Step 4: Simplify right side
    13,763.13x = 141,993,846.10
  5. Step 5: Solve for x
    x = 141,993,846.10/13,763.13
  6. Step 6: Final answer
    x = 10,316.97

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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.