Home / 18,587.40-27,864.90-11,194.80

Finding the Fourth Proportional to 18,587.40, 27,864.90 and 11,194.80

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Solution

The fourth proportional to 18,587.40, 27,864.90 and 11,194.80 is: 16,782.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,587.40 : 27,864.90 = 11,194.80 : x
  2. Step 2: Convert to fraction form
    18,587.40/27,864.90 = 11,194.80/x
  3. Step 3: Cross multiply
    18,587.40x = 27,864.90 × 11,194.80
  4. Step 4: Simplify right side
    18,587.40x = 311,941,982.52
  5. Step 5: Solve for x
    x = 311,941,982.52/18,587.40
  6. Step 6: Final answer
    x = 16,782.44

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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.