Home / 13,751.32-20,621.70-4,984.12

Finding the Fourth Proportional to 13,751.32, 20,621.70 and 4,984.12

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Solution

The fourth proportional to 13,751.32, 20,621.70 and 4,984.12 is: 7,474.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,751.32 : 20,621.70 = 4,984.12 : x
  2. Step 2: Convert to fraction form
    13,751.32/20,621.70 = 4,984.12/x
  3. Step 3: Cross multiply
    13,751.32x = 20,621.70 × 4,984.12
  4. Step 4: Simplify right side
    13,751.32x = 102,781,027.40
  5. Step 5: Solve for x
    x = 102,781,027.40/13,751.32
  6. Step 6: Final answer
    x = 7,474.27

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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.