Home / 11,415.20-15,751.77-6,634.24

Finding the Fourth Proportional to 11,415.20, 15,751.77 and 6,634.24

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Solution

The fourth proportional to 11,415.20, 15,751.77 and 6,634.24 is: 9,154.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,415.20 : 15,751.77 = 6,634.24 : x
  2. Step 2: Convert to fraction form
    11,415.20/15,751.77 = 6,634.24/x
  3. Step 3: Cross multiply
    11,415.20x = 15,751.77 × 6,634.24
  4. Step 4: Simplify right side
    11,415.20x = 104,500,958.35
  5. Step 5: Solve for x
    x = 104,500,958.35/11,415.20
  6. Step 6: Final answer
    x = 9,154.55

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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.