Home / 15,099.06-20,837.24-8,384.80

Finding the Fourth Proportional to 15,099.06, 20,837.24 and 8,384.80

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Solution

The fourth proportional to 15,099.06, 20,837.24 and 8,384.80 is: 11,571.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,099.06 : 20,837.24 = 8,384.80 : x
  2. Step 2: Convert to fraction form
    15,099.06/20,837.24 = 8,384.80/x
  3. Step 3: Cross multiply
    15,099.06x = 20,837.24 × 8,384.80
  4. Step 4: Simplify right side
    15,099.06x = 174,716,063.75
  5. Step 5: Solve for x
    x = 174,716,063.75/15,099.06
  6. Step 6: Final answer
    x = 11,571.32

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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.