Home / 13,091.45-19,636.86-3,230.81

Finding the Fourth Proportional to 13,091.45, 19,636.86 and 3,230.81

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Solution

The fourth proportional to 13,091.45, 19,636.86 and 3,230.81 is: 4,846.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,091.45 : 19,636.86 = 3,230.81 : x
  2. Step 2: Convert to fraction form
    13,091.45/19,636.86 = 3,230.81/x
  3. Step 3: Cross multiply
    13,091.45x = 19,636.86 × 3,230.81
  4. Step 4: Simplify right side
    13,091.45x = 63,442,865.47
  5. Step 5: Solve for x
    x = 63,442,865.47/13,091.45
  6. Step 6: Final answer
    x = 4,846.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.