Home / 14,997.12-20,680.71-9,027.60

Finding the Fourth Proportional to 14,997.12, 20,680.71 and 9,027.60

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Solution

The fourth proportional to 14,997.12, 20,680.71 and 9,027.60 is: 12,448.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,997.12 : 20,680.71 = 9,027.60 : x
  2. Step 2: Convert to fraction form
    14,997.12/20,680.71 = 9,027.60/x
  3. Step 3: Cross multiply
    14,997.12x = 20,680.71 × 9,027.60
  4. Step 4: Simplify right side
    14,997.12x = 186,697,177.60
  5. Step 5: Solve for x
    x = 186,697,177.60/14,997.12
  6. Step 6: Final answer
    x = 12,448.87

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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.