Home / 9,009.24-13,513.86-7,680.84

Finding the Fourth Proportional to 9,009.24, 13,513.86 and 7,680.84

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Solution

The fourth proportional to 9,009.24, 13,513.86 and 7,680.84 is: 11,521.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,009.24 : 13,513.86 = 7,680.84 : x
  2. Step 2: Convert to fraction form
    9,009.24/13,513.86 = 7,680.84/x
  3. Step 3: Cross multiply
    9,009.24x = 13,513.86 × 7,680.84
  4. Step 4: Simplify right side
    9,009.24x = 103,797,796.44
  5. Step 5: Solve for x
    x = 103,797,796.44/9,009.24
  6. Step 6: Final answer
    x = 11,521.26

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Double scale
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Similar ratio
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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.