Home / 13,165.37-18,169.87-7,499.82

Finding the Fourth Proportional to 13,165.37, 18,169.87 and 7,499.82

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Solution

The fourth proportional to 13,165.37, 18,169.87 and 7,499.82 is: 10,350.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,165.37 : 18,169.87 = 7,499.82 : x
  2. Step 2: Convert to fraction form
    13,165.37/18,169.87 = 7,499.82/x
  3. Step 3: Cross multiply
    13,165.37x = 18,169.87 × 7,499.82
  4. Step 4: Simplify right side
    13,165.37x = 136,270,817.87
  5. Step 5: Solve for x
    x = 136,270,817.87/13,165.37
  6. Step 6: Final answer
    x = 10,350.70

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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.