Home / 13,973.26-20,969.30-5,208.18

Finding the Fourth Proportional to 13,973.26, 20,969.30 and 5,208.18

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Solution

The fourth proportional to 13,973.26, 20,969.30 and 5,208.18 is: 7,815.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,973.26 : 20,969.30 = 5,208.18 : x
  2. Step 2: Convert to fraction form
    13,973.26/20,969.30 = 5,208.18/x
  3. Step 3: Cross multiply
    13,973.26x = 20,969.30 × 5,208.18
  4. Step 4: Simplify right side
    13,973.26x = 109,211,888.87
  5. Step 5: Solve for x
    x = 109,211,888.87/13,973.26
  6. Step 6: Final answer
    x = 7,815.78

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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.