Home / 11,249.04-15,520.50-6,771.36

Finding the Fourth Proportional to 11,249.04, 15,520.50 and 6,771.36

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Solution

The fourth proportional to 11,249.04, 15,520.50 and 6,771.36 is: 9,342.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,249.04 : 15,520.50 = 6,771.36 : x
  2. Step 2: Convert to fraction form
    11,249.04/15,520.50 = 6,771.36/x
  3. Step 3: Cross multiply
    11,249.04x = 15,520.50 × 6,771.36
  4. Step 4: Simplify right side
    11,249.04x = 105,094,892.88
  5. Step 5: Solve for x
    x = 105,094,892.88/11,249.04
  6. Step 6: Final answer
    x = 9,342.57

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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.