Home / 13,320.99-18,388.24-8,014.79

Finding the Fourth Proportional to 13,320.99, 18,388.24 and 8,014.79

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Solution

The fourth proportional to 13,320.99, 18,388.24 and 8,014.79 is: 11,063.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.99 : 18,388.24 = 8,014.79 : x
  2. Step 2: Convert to fraction form
    13,320.99/18,388.24 = 8,014.79/x
  3. Step 3: Cross multiply
    13,320.99x = 18,388.24 × 8,014.79
  4. Step 4: Simplify right side
    13,320.99x = 147,377,908.00
  5. Step 5: Solve for x
    x = 147,377,908.00/13,320.99
  6. Step 6: Final answer
    x = 11,063.59

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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.