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Finding the Fourth Proportional to 17,360.24, 25,945.09 and 12,690.08

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Solution

The fourth proportional to 17,360.24, 25,945.09 and 12,690.08 is: 18,965.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,360.24 : 25,945.09 = 12,690.08 : x
  2. Step 2: Convert to fraction form
    17,360.24/25,945.09 = 12,690.08/x
  3. Step 3: Cross multiply
    17,360.24x = 25,945.09 × 12,690.08
  4. Step 4: Simplify right side
    17,360.24x = 329,245,267.71
  5. Step 5: Solve for x
    x = 329,245,267.71/17,360.24
  6. Step 6: Final answer
    x = 18,965.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.