Home / 13,976.98-20,957.90-6,941.54

Finding the Fourth Proportional to 13,976.98, 20,957.90 and 6,941.54

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Solution

The fourth proportional to 13,976.98, 20,957.90 and 6,941.54 is: 10,408.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.98 : 20,957.90 = 6,941.54 : x
  2. Step 2: Convert to fraction form
    13,976.98/20,957.90 = 6,941.54/x
  3. Step 3: Cross multiply
    13,976.98x = 20,957.90 × 6,941.54
  4. Step 4: Simplify right side
    13,976.98x = 145,480,101.17
  5. Step 5: Solve for x
    x = 145,480,101.17/13,976.98
  6. Step 6: Final answer
    x = 10,408.55

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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.