Home / 18,143.60-27,196.26-8,289.34

Finding the Fourth Proportional to 18,143.60, 27,196.26 and 8,289.34

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Solution

The fourth proportional to 18,143.60, 27,196.26 and 8,289.34 is: 12,425.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.60 : 27,196.26 = 8,289.34 : x
  2. Step 2: Convert to fraction form
    18,143.60/27,196.26 = 8,289.34/x
  3. Step 3: Cross multiply
    18,143.60x = 27,196.26 × 8,289.34
  4. Step 4: Simplify right side
    18,143.60x = 225,438,946.79
  5. Step 5: Solve for x
    x = 225,438,946.79/18,143.60
  6. Step 6: Final answer
    x = 12,425.26

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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.