Home / 15,505.27-23,231.15-8,490.33

Finding the Fourth Proportional to 15,505.27, 23,231.15 and 8,490.33

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Solution

The fourth proportional to 15,505.27, 23,231.15 and 8,490.33 is: 12,720.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,505.27 : 23,231.15 = 8,490.33 : x
  2. Step 2: Convert to fraction form
    15,505.27/23,231.15 = 8,490.33/x
  3. Step 3: Cross multiply
    15,505.27x = 23,231.15 × 8,490.33
  4. Step 4: Simplify right side
    15,505.27x = 197,240,143.05
  5. Step 5: Solve for x
    x = 197,240,143.05/15,505.27
  6. Step 6: Final answer
    x = 12,720.85

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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.