Home / 9,921.85-13,692.58-5,942.20

Finding the Fourth Proportional to 9,921.85, 13,692.58 and 5,942.20

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Solution

The fourth proportional to 9,921.85, 13,692.58 and 5,942.20 is: 8,200.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,921.85 : 13,692.58 = 5,942.20 : x
  2. Step 2: Convert to fraction form
    9,921.85/13,692.58 = 5,942.20/x
  3. Step 3: Cross multiply
    9,921.85x = 13,692.58 × 5,942.20
  4. Step 4: Simplify right side
    9,921.85x = 81,364,048.88
  5. Step 5: Solve for x
    x = 81,364,048.88/9,921.85
  6. Step 6: Final answer
    x = 8,200.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.