Home / 13,305.90-19,960.40-4,422.03

Finding the Fourth Proportional to 13,305.90, 19,960.40 and 4,422.03

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Solution

The fourth proportional to 13,305.90, 19,960.40 and 4,422.03 is: 6,633.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.90 : 19,960.40 = 4,422.03 : x
  2. Step 2: Convert to fraction form
    13,305.90/19,960.40 = 4,422.03/x
  3. Step 3: Cross multiply
    13,305.90x = 19,960.40 × 4,422.03
  4. Step 4: Simplify right side
    13,305.90x = 88,265,465.50
  5. Step 5: Solve for x
    x = 88,265,465.50/13,305.90
  6. Step 6: Final answer
    x = 6,633.56

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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.