Home / 18,391.40-27,587.10-8,529.38

Finding the Fourth Proportional to 18,391.40, 27,587.10 and 8,529.38

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Solution

The fourth proportional to 18,391.40, 27,587.10 and 8,529.38 is: 12,794.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,391.40 : 27,587.10 = 8,529.38 : x
  2. Step 2: Convert to fraction form
    18,391.40/27,587.10 = 8,529.38/x
  3. Step 3: Cross multiply
    18,391.40x = 27,587.10 × 8,529.38
  4. Step 4: Simplify right side
    18,391.40x = 235,300,859.00
  5. Step 5: Solve for x
    x = 235,300,859.00/18,391.40
  6. Step 6: Final answer
    x = 12,794.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.