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Finding the Fourth Proportional to 11,939.70, 17,907.39 and 4,041.39

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Solution

The fourth proportional to 11,939.70, 17,907.39 and 4,041.39 is: 6,061.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.70 : 17,907.39 = 4,041.39 : x
  2. Step 2: Convert to fraction form
    11,939.70/17,907.39 = 4,041.39/x
  3. Step 3: Cross multiply
    11,939.70x = 17,907.39 × 4,041.39
  4. Step 4: Simplify right side
    11,939.70x = 72,370,746.87
  5. Step 5: Solve for x
    x = 72,370,746.87/11,939.70
  6. Step 6: Final answer
    x = 6,061.35

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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.