Home / 13,163.56-18,166.16-7,499.14

Finding the Fourth Proportional to 13,163.56, 18,166.16 and 7,499.14

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Solution

The fourth proportional to 13,163.56, 18,166.16 and 7,499.14 is: 10,349.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163.56 : 18,166.16 = 7,499.14 : x
  2. Step 2: Convert to fraction form
    13,163.56/18,166.16 = 7,499.14/x
  3. Step 3: Cross multiply
    13,163.56x = 18,166.16 × 7,499.14
  4. Step 4: Simplify right side
    13,163.56x = 136,230,577.10
  5. Step 5: Solve for x
    x = 136,230,577.10/13,163.56
  6. Step 6: Final answer
    x = 10,349.07

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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.