Home / 13,217.33-19,812.15-4,449.21

Finding the Fourth Proportional to 13,217.33, 19,812.15 and 4,449.21

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Solution

The fourth proportional to 13,217.33, 19,812.15 and 4,449.21 is: 6,669.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.33 : 19,812.15 = 4,449.21 : x
  2. Step 2: Convert to fraction form
    13,217.33/19,812.15 = 4,449.21/x
  3. Step 3: Cross multiply
    13,217.33x = 19,812.15 × 4,449.21
  4. Step 4: Simplify right side
    13,217.33x = 88,148,415.90
  5. Step 5: Solve for x
    x = 88,148,415.90/13,217.33
  6. Step 6: Final answer
    x = 6,669.16

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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.