Home / 12,961.56-19,442.21-5,939.58

Finding the Fourth Proportional to 12,961.56, 19,442.21 and 5,939.58

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Solution

The fourth proportional to 12,961.56, 19,442.21 and 5,939.58 is: 8,909.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961.56 : 19,442.21 = 5,939.58 : x
  2. Step 2: Convert to fraction form
    12,961.56/19,442.21 = 5,939.58/x
  3. Step 3: Cross multiply
    12,961.56x = 19,442.21 × 5,939.58
  4. Step 4: Simplify right side
    12,961.56x = 115,478,561.67
  5. Step 5: Solve for x
    x = 115,478,561.67/12,961.56
  6. Step 6: Final answer
    x = 8,909.31

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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.