Home / 13,220.27-19,817.95-4,449.05

Finding the Fourth Proportional to 13,220.27, 19,817.95 and 4,449.05

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Solution

The fourth proportional to 13,220.27, 19,817.95 and 4,449.05 is: 6,669.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.27 : 19,817.95 = 4,449.05 : x
  2. Step 2: Convert to fraction form
    13,220.27/19,817.95 = 4,449.05/x
  3. Step 3: Cross multiply
    13,220.27x = 19,817.95 × 4,449.05
  4. Step 4: Simplify right side
    13,220.27x = 88,171,050.45
  5. Step 5: Solve for x
    x = 88,171,050.45/13,220.27
  6. Step 6: Final answer
    x = 6,669.38

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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.