Home / 14,724.78-20,327.70-11,360.04

Finding the Fourth Proportional to 14,724.78, 20,327.70 and 11,360.04

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Solution

The fourth proportional to 14,724.78, 20,327.70 and 11,360.04 is: 15,682.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,724.78 : 20,327.70 = 11,360.04 : x
  2. Step 2: Convert to fraction form
    14,724.78/20,327.70 = 11,360.04/x
  3. Step 3: Cross multiply
    14,724.78x = 20,327.70 × 11,360.04
  4. Step 4: Simplify right side
    14,724.78x = 230,923,485.11
  5. Step 5: Solve for x
    x = 230,923,485.11/14,724.78
  6. Step 6: Final answer
    x = 15,682.64

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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.