Home / 14,945.72-20,629.49-8,976.42

Finding the Fourth Proportional to 14,945.72, 20,629.49 and 8,976.42

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Solution

The fourth proportional to 14,945.72, 20,629.49 and 8,976.42 is: 12,390.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,945.72 : 20,629.49 = 8,976.42 : x
  2. Step 2: Convert to fraction form
    14,945.72/20,629.49 = 8,976.42/x
  3. Step 3: Cross multiply
    14,945.72x = 20,629.49 × 8,976.42
  4. Step 4: Simplify right side
    14,945.72x = 185,178,921.74
  5. Step 5: Solve for x
    x = 185,178,921.74/14,945.72
  6. Step 6: Final answer
    x = 12,390.10

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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.