Home / 9,109.36-13,664.88-3,914.04

Finding the Fourth Proportional to 9,109.36, 13,664.88 and 3,914.04

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Solution

The fourth proportional to 9,109.36, 13,664.88 and 3,914.04 is: 5,871.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,109.36 : 13,664.88 = 3,914.04 : x
  2. Step 2: Convert to fraction form
    9,109.36/13,664.88 = 3,914.04/x
  3. Step 3: Cross multiply
    9,109.36x = 13,664.88 × 3,914.04
  4. Step 4: Simplify right side
    9,109.36x = 53,484,886.92
  5. Step 5: Solve for x
    x = 53,484,886.92/9,109.36
  6. Step 6: Final answer
    x = 5,871.42

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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.