Home / 14,945.28-20,623.56-8,656.56

Finding the Fourth Proportional to 14,945.28, 20,623.56 and 8,656.56

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Solution

The fourth proportional to 14,945.28, 20,623.56 and 8,656.56 is: 11,945.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,945.28 : 20,623.56 = 8,656.56 : x
  2. Step 2: Convert to fraction form
    14,945.28/20,623.56 = 8,656.56/x
  3. Step 3: Cross multiply
    14,945.28x = 20,623.56 × 8,656.56
  4. Step 4: Simplify right side
    14,945.28x = 178,529,084.55
  5. Step 5: Solve for x
    x = 178,529,084.55/14,945.28
  6. Step 6: Final answer
    x = 11,945.52

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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.