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Finding the Fourth Proportional to 17,126.98, 25,690.36 and 8,809.32

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Solution

The fourth proportional to 17,126.98, 25,690.36 and 8,809.32 is: 13,213.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,126.98 : 25,690.36 = 8,809.32 : x
  2. Step 2: Convert to fraction form
    17,126.98/25,690.36 = 8,809.32/x
  3. Step 3: Cross multiply
    17,126.98x = 25,690.36 × 8,809.32
  4. Step 4: Simplify right side
    17,126.98x = 226,314,602.16
  5. Step 5: Solve for x
    x = 226,314,602.16/17,126.98
  6. Step 6: Final answer
    x = 13,213.92

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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.