Home / 14,707.94-20,286.71-9,670.55

Finding the Fourth Proportional to 14,707.94, 20,286.71 and 9,670.55

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Solution

The fourth proportional to 14,707.94, 20,286.71 and 9,670.55 is: 13,338.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,707.94 : 20,286.71 = 9,670.55 : x
  2. Step 2: Convert to fraction form
    14,707.94/20,286.71 = 9,670.55/x
  3. Step 3: Cross multiply
    14,707.94x = 20,286.71 × 9,670.55
  4. Step 4: Simplify right side
    14,707.94x = 196,183,645.75
  5. Step 5: Solve for x
    x = 196,183,645.75/14,707.94
  6. Step 6: Final answer
    x = 13,338.62

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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.