Home / 12,943.28-19,399.92-5,536.64

Finding the Fourth Proportional to 12,943.28, 19,399.92 and 5,536.64

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Solution

The fourth proportional to 12,943.28, 19,399.92 and 5,536.64 is: 8,298.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,943.28 : 19,399.92 = 5,536.64 : x
  2. Step 2: Convert to fraction form
    12,943.28/19,399.92 = 5,536.64/x
  3. Step 3: Cross multiply
    12,943.28x = 19,399.92 × 5,536.64
  4. Step 4: Simplify right side
    12,943.28x = 107,410,373.07
  5. Step 5: Solve for x
    x = 107,410,373.07/12,943.28
  6. Step 6: Final answer
    x = 8,298.54

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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.