Home / 12,755.36-17,598.80-8,279.28

Finding the Fourth Proportional to 12,755.36, 17,598.80 and 8,279.28

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Solution

The fourth proportional to 12,755.36, 17,598.80 and 8,279.28 is: 11,423.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,755.36 : 17,598.80 = 8,279.28 : x
  2. Step 2: Convert to fraction form
    12,755.36/17,598.80 = 8,279.28/x
  3. Step 3: Cross multiply
    12,755.36x = 17,598.80 × 8,279.28
  4. Step 4: Simplify right side
    12,755.36x = 145,705,392.86
  5. Step 5: Solve for x
    x = 145,705,392.86/12,755.36
  6. Step 6: Final answer
    x = 11,423.07

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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.