Home / 14,147.39-19,523.81-8,178.53

Finding the Fourth Proportional to 14,147.39, 19,523.81 and 8,178.53

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Solution

The fourth proportional to 14,147.39, 19,523.81 and 8,178.53 is: 11,286.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.39 : 19,523.81 = 8,178.53 : x
  2. Step 2: Convert to fraction form
    14,147.39/19,523.81 = 8,178.53/x
  3. Step 3: Cross multiply
    14,147.39x = 19,523.81 × 8,178.53
  4. Step 4: Simplify right side
    14,147.39x = 159,675,988.63
  5. Step 5: Solve for x
    x = 159,675,988.63/14,147.39
  6. Step 6: Final answer
    x = 11,286.61

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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.