Home / 15,122.06-20,865.38-8,833.22

Finding the Fourth Proportional to 15,122.06, 20,865.38 and 8,833.22

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Solution

The fourth proportional to 15,122.06, 20,865.38 and 8,833.22 is: 12,188.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,122.06 : 20,865.38 = 8,833.22 : x
  2. Step 2: Convert to fraction form
    15,122.06/20,865.38 = 8,833.22/x
  3. Step 3: Cross multiply
    15,122.06x = 20,865.38 × 8,833.22
  4. Step 4: Simplify right side
    15,122.06x = 184,308,491.92
  5. Step 5: Solve for x
    x = 184,308,491.92/15,122.06
  6. Step 6: Final answer
    x = 12,188.05

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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.