Home / 14,939.49-20,616.07-8,224.21

Finding the Fourth Proportional to 14,939.49, 20,616.07 and 8,224.21

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Solution

The fourth proportional to 14,939.49, 20,616.07 and 8,224.21 is: 11,349.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,939.49 : 20,616.07 = 8,224.21 : x
  2. Step 2: Convert to fraction form
    14,939.49/20,616.07 = 8,224.21/x
  3. Step 3: Cross multiply
    14,939.49x = 20,616.07 × 8,224.21
  4. Step 4: Simplify right side
    14,939.49x = 169,550,889.05
  5. Step 5: Solve for x
    x = 169,550,889.05/14,939.49
  6. Step 6: Final answer
    x = 11,349.18

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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.