Home / 9,768.84-13,480.20-5,520.26

Finding the Fourth Proportional to 9,768.84, 13,480.20 and 5,520.26

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Solution

The fourth proportional to 9,768.84, 13,480.20 and 5,520.26 is: 7,617.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,768.84 : 13,480.20 = 5,520.26 : x
  2. Step 2: Convert to fraction form
    9,768.84/13,480.20 = 5,520.26/x
  3. Step 3: Cross multiply
    9,768.84x = 13,480.20 × 5,520.26
  4. Step 4: Simplify right side
    9,768.84x = 74,414,208.85
  5. Step 5: Solve for x
    x = 74,414,208.85/9,768.84
  6. Step 6: Final answer
    x = 7,617.51

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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.