Home / 12,889.43-19,341.44-5,493.12

Finding the Fourth Proportional to 12,889.43, 19,341.44 and 5,493.12

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Solution

The fourth proportional to 12,889.43, 19,341.44 and 5,493.12 is: 8,242.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889.43 : 19,341.44 = 5,493.12 : x
  2. Step 2: Convert to fraction form
    12,889.43/19,341.44 = 5,493.12/x
  3. Step 3: Cross multiply
    12,889.43x = 19,341.44 × 5,493.12
  4. Step 4: Simplify right side
    12,889.43x = 106,244,823.43
  5. Step 5: Solve for x
    x = 106,244,823.43/12,889.43
  6. Step 6: Final answer
    x = 8,242.79

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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.