Home / 12,783.11-17,646.14-8,593.79

Finding the Fourth Proportional to 12,783.11, 17,646.14 and 8,593.79

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Solution

The fourth proportional to 12,783.11, 17,646.14 and 8,593.79 is: 11,863.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,783.11 : 17,646.14 = 8,593.79 : x
  2. Step 2: Convert to fraction form
    12,783.11/17,646.14 = 8,593.79/x
  3. Step 3: Cross multiply
    12,783.11x = 17,646.14 × 8,593.79
  4. Step 4: Simplify right side
    12,783.11x = 151,647,178.50
  5. Step 5: Solve for x
    x = 151,647,178.50/12,783.11
  6. Step 6: Final answer
    x = 11,863.09

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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.