Home / 13,213.40-19,815.30-4,448.60

Finding the Fourth Proportional to 13,213.40, 19,815.30 and 4,448.60

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Solution

The fourth proportional to 13,213.40, 19,815.30 and 4,448.60 is: 6,671.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.40 : 19,815.30 = 4,448.60 : x
  2. Step 2: Convert to fraction form
    13,213.40/19,815.30 = 4,448.60/x
  3. Step 3: Cross multiply
    13,213.40x = 19,815.30 × 4,448.60
  4. Step 4: Simplify right side
    13,213.40x = 88,150,343.58
  5. Step 5: Solve for x
    x = 88,150,343.58/13,213.40
  6. Step 6: Final answer
    x = 6,671.28

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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.