Home / 13,822.84-20,715.42-10,107.64

Finding the Fourth Proportional to 13,822.84, 20,715.42 and 10,107.64

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Solution

The fourth proportional to 13,822.84, 20,715.42 and 10,107.64 is: 15,147.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.84 : 20,715.42 = 10,107.64 : x
  2. Step 2: Convert to fraction form
    13,822.84/20,715.42 = 10,107.64/x
  3. Step 3: Cross multiply
    13,822.84x = 20,715.42 × 10,107.64
  4. Step 4: Simplify right side
    13,822.84x = 209,384,007.81
  5. Step 5: Solve for x
    x = 209,384,007.81/13,822.84
  6. Step 6: Final answer
    x = 15,147.68

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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.