Home / 13,969.45-20,936.35-6,557.55

Finding the Fourth Proportional to 13,969.45, 20,936.35 and 6,557.55

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Solution

The fourth proportional to 13,969.45, 20,936.35 and 6,557.55 is: 9,827.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,969.45 : 20,936.35 = 6,557.55 : x
  2. Step 2: Convert to fraction form
    13,969.45/20,936.35 = 6,557.55/x
  3. Step 3: Cross multiply
    13,969.45x = 20,936.35 × 6,557.55
  4. Step 4: Simplify right side
    13,969.45x = 137,291,161.94
  5. Step 5: Solve for x
    x = 137,291,161.94/13,969.45
  6. Step 6: Final answer
    x = 9,827.96

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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.