Home / 12,723.78-19,094.58-8,571.72

Finding the Fourth Proportional to 12,723.78, 19,094.58 and 8,571.72

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Solution

The fourth proportional to 12,723.78, 19,094.58 and 8,571.72 is: 12,863.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,723.78 : 19,094.58 = 8,571.72 : x
  2. Step 2: Convert to fraction form
    12,723.78/19,094.58 = 8,571.72/x
  3. Step 3: Cross multiply
    12,723.78x = 19,094.58 × 8,571.72
  4. Step 4: Simplify right side
    12,723.78x = 163,673,393.28
  5. Step 5: Solve for x
    x = 163,673,393.28/12,723.78
  6. Step 6: Final answer
    x = 12,863.58

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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.