Home / 13,763.38-18,993.36-7,475.80

Finding the Fourth Proportional to 13,763.38, 18,993.36 and 7,475.80

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Solution

The fourth proportional to 13,763.38, 18,993.36 and 7,475.80 is: 10,316.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.38 : 18,993.36 = 7,475.80 : x
  2. Step 2: Convert to fraction form
    13,763.38/18,993.36 = 7,475.80/x
  3. Step 3: Cross multiply
    13,763.38x = 18,993.36 × 7,475.80
  4. Step 4: Simplify right side
    13,763.38x = 141,990,560.69
  5. Step 5: Solve for x
    x = 141,990,560.69/13,763.38
  6. Step 6: Final answer
    x = 10,316.55

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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.