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Finding the Fourth Proportional to 13,690.08, 18,891.09 and 8,024.00

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Solution

The fourth proportional to 13,690.08, 18,891.09 and 8,024.00 is: 11,072.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690.08 : 18,891.09 = 8,024.00 : x
  2. Step 2: Convert to fraction form
    13,690.08/18,891.09 = 8,024.00/x
  3. Step 3: Cross multiply
    13,690.08x = 18,891.09 × 8,024.00
  4. Step 4: Simplify right side
    13,690.08x = 151,582,011.70
  5. Step 5: Solve for x
    x = 151,582,011.70/13,690.08
  6. Step 6: Final answer
    x = 11,072.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.