Home / 13,936.68-20,904.78-5,616.49

Finding the Fourth Proportional to 13,936.68, 20,904.78 and 5,616.49

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Solution

The fourth proportional to 13,936.68, 20,904.78 and 5,616.49 is: 8,424.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,936.68 : 20,904.78 = 5,616.49 : x
  2. Step 2: Convert to fraction form
    13,936.68/20,904.78 = 5,616.49/x
  3. Step 3: Cross multiply
    13,936.68x = 20,904.78 × 5,616.49
  4. Step 4: Simplify right side
    13,936.68x = 117,411,487.82
  5. Step 5: Solve for x
    x = 117,411,487.82/13,936.68
  6. Step 6: Final answer
    x = 8,424.64

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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.