Home / 13,293.20-19,920.99-7,372.70

Finding the Fourth Proportional to 13,293.20, 19,920.99 and 7,372.70

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Solution

The fourth proportional to 13,293.20, 19,920.99 and 7,372.70 is: 11,048.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.20 : 19,920.99 = 7,372.70 : x
  2. Step 2: Convert to fraction form
    13,293.20/19,920.99 = 7,372.70/x
  3. Step 3: Cross multiply
    13,293.20x = 19,920.99 × 7,372.70
  4. Step 4: Simplify right side
    13,293.20x = 146,871,383.37
  5. Step 5: Solve for x
    x = 146,871,383.37/13,293.20
  6. Step 6: Final answer
    x = 11,048.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.