Home / 12,939.07-19,407.93-4,173.99

Finding the Fourth Proportional to 12,939.07, 19,407.93 and 4,173.99

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Solution

The fourth proportional to 12,939.07, 19,407.93 and 4,173.99 is: 6,260.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,939.07 : 19,407.93 = 4,173.99 : x
  2. Step 2: Convert to fraction form
    12,939.07/19,407.93 = 4,173.99/x
  3. Step 3: Cross multiply
    12,939.07x = 19,407.93 × 4,173.99
  4. Step 4: Simplify right side
    12,939.07x = 81,008,505.74
  5. Step 5: Solve for x
    x = 81,008,505.74/12,939.07
  6. Step 6: Final answer
    x = 6,260.77

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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.