Home / 13,099.76-19,643.60-4,213.44

Finding the Fourth Proportional to 13,099.76, 19,643.60 and 4,213.44

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Solution

The fourth proportional to 13,099.76, 19,643.60 and 4,213.44 is: 6,318.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,099.76 : 19,643.60 = 4,213.44 : x
  2. Step 2: Convert to fraction form
    13,099.76/19,643.60 = 4,213.44/x
  3. Step 3: Cross multiply
    13,099.76x = 19,643.60 × 4,213.44
  4. Step 4: Simplify right side
    13,099.76x = 82,767,010.70
  5. Step 5: Solve for x
    x = 82,767,010.70/13,099.76
  6. Step 6: Final answer
    x = 6,318.21

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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.