Home / 13,350.61-20,005.12-11,956.33

Finding the Fourth Proportional to 13,350.61, 20,005.12 and 11,956.33

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Solution

The fourth proportional to 13,350.61, 20,005.12 and 11,956.33 is: 17,915.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,350.61 : 20,005.12 = 11,956.33 : x
  2. Step 2: Convert to fraction form
    13,350.61/20,005.12 = 11,956.33/x
  3. Step 3: Cross multiply
    13,350.61x = 20,005.12 × 11,956.33
  4. Step 4: Simplify right side
    13,350.61x = 239,187,816.41
  5. Step 5: Solve for x
    x = 239,187,816.41/13,350.61
  6. Step 6: Final answer
    x = 17,915.87

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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.