Home / 11,291.93-15,584.64-6,816.32

Finding the Fourth Proportional to 11,291.93, 15,584.64 and 6,816.32

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Solution

The fourth proportional to 11,291.93, 15,584.64 and 6,816.32 is: 9,407.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,291.93 : 15,584.64 = 6,816.32 : x
  2. Step 2: Convert to fraction form
    11,291.93/15,584.64 = 6,816.32/x
  3. Step 3: Cross multiply
    11,291.93x = 15,584.64 × 6,816.32
  4. Step 4: Simplify right side
    11,291.93x = 106,229,893.32
  5. Step 5: Solve for x
    x = 106,229,893.32/11,291.93
  6. Step 6: Final answer
    x = 9,407.59

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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.