Home / 12,945.66-19,422.58-4,625.48

Finding the Fourth Proportional to 12,945.66, 19,422.58 and 4,625.48

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Solution

The fourth proportional to 12,945.66, 19,422.58 and 4,625.48 is: 6,939.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,945.66 : 19,422.58 = 4,625.48 : x
  2. Step 2: Convert to fraction form
    12,945.66/19,422.58 = 4,625.48/x
  3. Step 3: Cross multiply
    12,945.66x = 19,422.58 × 4,625.48
  4. Step 4: Simplify right side
    12,945.66x = 89,838,755.34
  5. Step 5: Solve for x
    x = 89,838,755.34/12,945.66
  6. Step 6: Final answer
    x = 6,939.68

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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.