Home / 14,945.63-20,633.25-8,978.75

Finding the Fourth Proportional to 14,945.63, 20,633.25 and 8,978.75

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Solution

The fourth proportional to 14,945.63, 20,633.25 and 8,978.75 is: 12,395.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,945.63 : 20,633.25 = 8,978.75 : x
  2. Step 2: Convert to fraction form
    14,945.63/20,633.25 = 8,978.75/x
  3. Step 3: Cross multiply
    14,945.63x = 20,633.25 × 8,978.75
  4. Step 4: Simplify right side
    14,945.63x = 185,260,793.44
  5. Step 5: Solve for x
    x = 185,260,793.44/14,945.63
  6. Step 6: Final answer
    x = 12,395.65

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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.