Home / 13,213.80-19,815.30-4,444.20

Finding the Fourth Proportional to 13,213.80, 19,815.30 and 4,444.20

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Solution

The fourth proportional to 13,213.80, 19,815.30 and 4,444.20 is: 6,664.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.80 : 19,815.30 = 4,444.20 : x
  2. Step 2: Convert to fraction form
    13,213.80/19,815.30 = 4,444.20/x
  3. Step 3: Cross multiply
    13,213.80x = 19,815.30 × 4,444.20
  4. Step 4: Simplify right side
    13,213.80x = 88,063,156.26
  5. Step 5: Solve for x
    x = 88,063,156.26/13,213.80
  6. Step 6: Final answer
    x = 6,664.48

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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.