Home / 13,936.75-20,905.13-4,702.75

Finding the Fourth Proportional to 13,936.75, 20,905.13 and 4,702.75

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Solution

The fourth proportional to 13,936.75, 20,905.13 and 4,702.75 is: 7,054.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,936.75 : 20,905.13 = 4,702.75 : x
  2. Step 2: Convert to fraction form
    13,936.75/20,905.13 = 4,702.75/x
  3. Step 3: Cross multiply
    13,936.75x = 20,905.13 × 4,702.75
  4. Step 4: Simplify right side
    13,936.75x = 98,311,600.11
  5. Step 5: Solve for x
    x = 98,311,600.11/13,936.75
  6. Step 6: Final answer
    x = 7,054.13

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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.