Home / 13,162.19-18,163.78-7,193.86

Finding the Fourth Proportional to 13,162.19, 18,163.78 and 7,193.86

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Solution

The fourth proportional to 13,162.19, 18,163.78 and 7,193.86 is: 9,927.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,162.19 : 18,163.78 = 7,193.86 : x
  2. Step 2: Convert to fraction form
    13,162.19/18,163.78 = 7,193.86/x
  3. Step 3: Cross multiply
    13,162.19x = 18,163.78 × 7,193.86
  4. Step 4: Simplify right side
    13,162.19x = 130,667,690.39
  5. Step 5: Solve for x
    x = 130,667,690.39/13,162.19
  6. Step 6: Final answer
    x = 9,927.50

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Double 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.