Home / 13,169.08-18,173.10-7,200.76

Finding the Fourth Proportional to 13,169.08, 18,173.10 and 7,200.76

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Solution

The fourth proportional to 13,169.08, 18,173.10 and 7,200.76 is: 9,936.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,169.08 : 18,173.10 = 7,200.76 : x
  2. Step 2: Convert to fraction form
    13,169.08/18,173.10 = 7,200.76/x
  3. Step 3: Cross multiply
    13,169.08x = 18,173.10 × 7,200.76
  4. Step 4: Simplify right side
    13,169.08x = 130,860,131.56
  5. Step 5: Solve for x
    x = 130,860,131.56/13,169.08
  6. Step 6: Final answer
    x = 9,936.92

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Half scale
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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.