Home / 11,133.75-15,365.66-6,165.75

Finding the Fourth Proportional to 11,133.75, 15,365.66 and 6,165.75

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Solution

The fourth proportional to 11,133.75, 15,365.66 and 6,165.75 is: 8,509.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.75 : 15,365.66 = 6,165.75 : x
  2. Step 2: Convert to fraction form
    11,133.75/15,365.66 = 6,165.75/x
  3. Step 3: Cross multiply
    11,133.75x = 15,365.66 × 6,165.75
  4. Step 4: Simplify right side
    11,133.75x = 94,740,787.32
  5. Step 5: Solve for x
    x = 94,740,787.32/11,133.75
  6. Step 6: Final answer
    x = 8,509.33

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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.