Home / 11,311.88-15,612.09-6,595.52

Finding the Fourth Proportional to 11,311.88, 15,612.09 and 6,595.52

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Solution

The fourth proportional to 11,311.88, 15,612.09 and 6,595.52 is: 9,102.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311.88 : 15,612.09 = 6,595.52 : x
  2. Step 2: Convert to fraction form
    11,311.88/15,612.09 = 6,595.52/x
  3. Step 3: Cross multiply
    11,311.88x = 15,612.09 × 6,595.52
  4. Step 4: Simplify right side
    11,311.88x = 102,969,851.84
  5. Step 5: Solve for x
    x = 102,969,851.84/11,311.88
  6. Step 6: Final answer
    x = 9,102.81

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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.