Home / 15,161.44-20,922.83-8,789.26

Finding the Fourth Proportional to 15,161.44, 20,922.83 and 8,789.26

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Solution

The fourth proportional to 15,161.44, 20,922.83 and 8,789.26 is: 12,129.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,161.44 : 20,922.83 = 8,789.26 : x
  2. Step 2: Convert to fraction form
    15,161.44/20,922.83 = 8,789.26/x
  3. Step 3: Cross multiply
    15,161.44x = 20,922.83 × 8,789.26
  4. Step 4: Simplify right side
    15,161.44x = 183,896,192.81
  5. Step 5: Solve for x
    x = 183,896,192.81/15,161.44
  6. Step 6: Final answer
    x = 12,129.20

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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.