Home / 14,612.80-21,906.08-5,250.64

Finding the Fourth Proportional to 14,612.80, 21,906.08 and 5,250.64

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Solution

The fourth proportional to 14,612.80, 21,906.08 and 5,250.64 is: 7,871.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,612.80 : 21,906.08 = 5,250.64 : x
  2. Step 2: Convert to fraction form
    14,612.80/21,906.08 = 5,250.64/x
  3. Step 3: Cross multiply
    14,612.80x = 21,906.08 × 5,250.64
  4. Step 4: Simplify right side
    14,612.80x = 115,020,939.89
  5. Step 5: Solve for x
    x = 115,020,939.89/14,612.80
  6. Step 6: Final answer
    x = 7,871.25

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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.