Home / 13,279.58-18,323.32-8,245.03

Finding the Fourth Proportional to 13,279.58, 18,323.32 and 8,245.03

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Solution

The fourth proportional to 13,279.58, 18,323.32 and 8,245.03 is: 11,376.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.58 : 18,323.32 = 8,245.03 : x
  2. Step 2: Convert to fraction form
    13,279.58/18,323.32 = 8,245.03/x
  3. Step 3: Cross multiply
    13,279.58x = 18,323.32 × 8,245.03
  4. Step 4: Simplify right side
    13,279.58x = 151,076,210.87
  5. Step 5: Solve for x
    x = 151,076,210.87/13,279.58
  6. Step 6: Final answer
    x = 11,376.58

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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.