Home / 7,969.08-10,990.36-5,577.84

Finding the Fourth Proportional to 7,969.08, 10,990.36 and 5,577.84

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Solution

The fourth proportional to 7,969.08, 10,990.36 and 5,577.84 is: 7,692.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,969.08 : 10,990.36 = 5,577.84 : x
  2. Step 2: Convert to fraction form
    7,969.08/10,990.36 = 5,577.84/x
  3. Step 3: Cross multiply
    7,969.08x = 10,990.36 × 5,577.84
  4. Step 4: Simplify right side
    7,969.08x = 61,302,469.62
  5. Step 5: Solve for x
    x = 61,302,469.62/7,969.08
  6. Step 6: Final answer
    x = 7,692.54

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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.