Home / 14,939.07-20,615.77-8,224.56

Finding the Fourth Proportional to 14,939.07, 20,615.77 and 8,224.56

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Solution

The fourth proportional to 14,939.07, 20,615.77 and 8,224.56 is: 11,349.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,939.07 : 20,615.77 = 8,224.56 : x
  2. Step 2: Convert to fraction form
    14,939.07/20,615.77 = 8,224.56/x
  3. Step 3: Cross multiply
    14,939.07x = 20,615.77 × 8,224.56
  4. Step 4: Simplify right side
    14,939.07x = 169,555,702.80
  5. Step 5: Solve for x
    x = 169,555,702.80/14,939.07
  6. Step 6: Final answer
    x = 11,349.81

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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.