Home / 13,574.44-20,365.98-6,645.16

Finding the Fourth Proportional to 13,574.44, 20,365.98 and 6,645.16

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Solution

The fourth proportional to 13,574.44, 20,365.98 and 6,645.16 is: 9,969.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,574.44 : 20,365.98 = 6,645.16 : x
  2. Step 2: Convert to fraction form
    13,574.44/20,365.98 = 6,645.16/x
  3. Step 3: Cross multiply
    13,574.44x = 20,365.98 × 6,645.16
  4. Step 4: Simplify right side
    13,574.44x = 135,335,195.66
  5. Step 5: Solve for x
    x = 135,335,195.66/13,574.44
  6. Step 6: Final answer
    x = 9,969.85

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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.