Home / 13,050.24-18,001.80-8,329.20

Finding the Fourth Proportional to 13,050.24, 18,001.80 and 8,329.20

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Solution

The fourth proportional to 13,050.24, 18,001.80 and 8,329.20 is: 11,489.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,050.24 : 18,001.80 = 8,329.20 : x
  2. Step 2: Convert to fraction form
    13,050.24/18,001.80 = 8,329.20/x
  3. Step 3: Cross multiply
    13,050.24x = 18,001.80 × 8,329.20
  4. Step 4: Simplify right side
    13,050.24x = 149,940,592.56
  5. Step 5: Solve for x
    x = 149,940,592.56/13,050.24
  6. Step 6: Final answer
    x = 11,489.49

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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.