Home / 13,919.77-20,880.66-5,599.84

Finding the Fourth Proportional to 13,919.77, 20,880.66 and 5,599.84

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Solution

The fourth proportional to 13,919.77, 20,880.66 and 5,599.84 is: 8,400.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.77 : 20,880.66 = 5,599.84 : x
  2. Step 2: Convert to fraction form
    13,919.77/20,880.66 = 5,599.84/x
  3. Step 3: Cross multiply
    13,919.77x = 20,880.66 × 5,599.84
  4. Step 4: Simplify right side
    13,919.77x = 116,928,355.09
  5. Step 5: Solve for x
    x = 116,928,355.09/13,919.77
  6. Step 6: Final answer
    x = 8,400.16

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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.