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Finding the Fourth Proportional to 18,030.67, 27,027.76 and 8,656.99

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Solution

The fourth proportional to 18,030.67, 27,027.76 and 8,656.99 is: 12,976.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,030.67 : 27,027.76 = 8,656.99 : x
  2. Step 2: Convert to fraction form
    18,030.67/27,027.76 = 8,656.99/x
  3. Step 3: Cross multiply
    18,030.67x = 27,027.76 × 8,656.99
  4. Step 4: Simplify right side
    18,030.67x = 233,979,048.04
  5. Step 5: Solve for x
    x = 233,979,048.04/18,030.67
  6. Step 6: Final answer
    x = 12,976.73

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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.