Home / 14,939.92-20,616.80-8,225.66

Finding the Fourth Proportional to 14,939.92, 20,616.80 and 8,225.66

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Solution

The fourth proportional to 14,939.92, 20,616.80 and 8,225.66 is: 11,351.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,939.92 : 20,616.80 = 8,225.66 : x
  2. Step 2: Convert to fraction form
    14,939.92/20,616.80 = 8,225.66/x
  3. Step 3: Cross multiply
    14,939.92x = 20,616.80 × 8,225.66
  4. Step 4: Simplify right side
    14,939.92x = 169,586,762.65
  5. Step 5: Solve for x
    x = 169,586,762.65/14,939.92
  6. Step 6: Final answer
    x = 11,351.25

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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.