Home / 13,619.80-20,429.69-5,823.14

Finding the Fourth Proportional to 13,619.80, 20,429.69 and 5,823.14

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Solution

The fourth proportional to 13,619.80, 20,429.69 and 5,823.14 is: 8,734.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.80 : 20,429.69 = 5,823.14 : x
  2. Step 2: Convert to fraction form
    13,619.80/20,429.69 = 5,823.14/x
  3. Step 3: Cross multiply
    13,619.80x = 20,429.69 × 5,823.14
  4. Step 4: Simplify right side
    13,619.80x = 118,964,977.81
  5. Step 5: Solve for x
    x = 118,964,977.81/13,619.80
  6. Step 6: Final answer
    x = 8,734.71

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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.