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Finding the Fourth Proportional to 17,334.80, 26,002.20 and 12,393.80

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Solution

The fourth proportional to 17,334.80, 26,002.20 and 12,393.80 is: 18,590.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,334.80 : 26,002.20 = 12,393.80 : x
  2. Step 2: Convert to fraction form
    17,334.80/26,002.20 = 12,393.80/x
  3. Step 3: Cross multiply
    17,334.80x = 26,002.20 × 12,393.80
  4. Step 4: Simplify right side
    17,334.80x = 322,266,066.36
  5. Step 5: Solve for x
    x = 322,266,066.36/17,334.80
  6. Step 6: Final answer
    x = 18,590.70

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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.