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Finding the Fourth Proportional to 18,002.74, 27,004.07 and 6,319.30

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Solution

The fourth proportional to 18,002.74, 27,004.07 and 6,319.30 is: 9,478.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,002.74 : 27,004.07 = 6,319.30 : x
  2. Step 2: Convert to fraction form
    18,002.74/27,004.07 = 6,319.30/x
  3. Step 3: Cross multiply
    18,002.74x = 27,004.07 × 6,319.30
  4. Step 4: Simplify right side
    18,002.74x = 170,646,819.55
  5. Step 5: Solve for x
    x = 170,646,819.55/18,002.74
  6. Step 6: Final answer
    x = 9,478.94

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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.