Home / 11,415.08-17,125.88-6,739.36

Finding the Fourth Proportional to 11,415.08, 17,125.88 and 6,739.36

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Solution

The fourth proportional to 11,415.08, 17,125.88 and 6,739.36 is: 10,110.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,415.08 : 17,125.88 = 6,739.36 : x
  2. Step 2: Convert to fraction form
    11,415.08/17,125.88 = 6,739.36/x
  3. Step 3: Cross multiply
    11,415.08x = 17,125.88 × 6,739.36
  4. Step 4: Simplify right side
    11,415.08x = 115,417,470.64
  5. Step 5: Solve for x
    x = 115,417,470.64/11,415.08
  6. Step 6: Final answer
    x = 10,110.96

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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.