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Finding the Fourth Proportional to 12,000.36, 17,969.01 and 8,471.32

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Solution

The fourth proportional to 12,000.36, 17,969.01 and 8,471.32 is: 12,684.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,000.36 : 17,969.01 = 8,471.32 : x
  2. Step 2: Convert to fraction form
    12,000.36/17,969.01 = 8,471.32/x
  3. Step 3: Cross multiply
    12,000.36x = 17,969.01 × 8,471.32
  4. Step 4: Simplify right side
    12,000.36x = 152,221,233.79
  5. Step 5: Solve for x
    x = 152,221,233.79/12,000.36
  6. Step 6: Final answer
    x = 12,684.72

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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.