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Finding the Fourth Proportional to 18,000.16, 27,000.48 and 6,313.72

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Solution

The fourth proportional to 18,000.16, 27,000.48 and 6,313.72 is: 9,470.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,000.16 : 27,000.48 = 6,313.72 : x
  2. Step 2: Convert to fraction form
    18,000.16/27,000.48 = 6,313.72/x
  3. Step 3: Cross multiply
    18,000.16x = 27,000.48 × 6,313.72
  4. Step 4: Simplify right side
    18,000.16x = 170,473,470.59
  5. Step 5: Solve for x
    x = 170,473,470.59/18,000.16
  6. Step 6: Final answer
    x = 9,470.66

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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.