Home / 13,760.96-18,990.11-7,473.33

Finding the Fourth Proportional to 13,760.96, 18,990.11 and 7,473.33

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Solution

The fourth proportional to 13,760.96, 18,990.11 and 7,473.33 is: 10,313.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760.96 : 18,990.11 = 7,473.33 : x
  2. Step 2: Convert to fraction form
    13,760.96/18,990.11 = 7,473.33/x
  3. Step 3: Cross multiply
    13,760.96x = 18,990.11 × 7,473.33
  4. Step 4: Simplify right side
    13,760.96x = 141,919,377.45
  5. Step 5: Solve for x
    x = 141,919,377.45/13,760.96
  6. Step 6: Final answer
    x = 10,313.19

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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.