Home / 15,122.75-20,866.34-8,833.91

Finding the Fourth Proportional to 15,122.75, 20,866.34 and 8,833.91

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Solution

The fourth proportional to 15,122.75, 20,866.34 and 8,833.91 is: 12,189.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,122.75 : 20,866.34 = 8,833.91 : x
  2. Step 2: Convert to fraction form
    15,122.75/20,866.34 = 8,833.91/x
  3. Step 3: Cross multiply
    15,122.75x = 20,866.34 × 8,833.91
  4. Step 4: Simplify right side
    15,122.75x = 184,331,287.34
  5. Step 5: Solve for x
    x = 184,331,287.34/15,122.75
  6. Step 6: Final answer
    x = 12,189.01

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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.