Home / 11,261.05-15,534.11-6,782.09

Finding the Fourth Proportional to 11,261.05, 15,534.11 and 6,782.09

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Solution

The fourth proportional to 11,261.05, 15,534.11 and 6,782.09 is: 9,355.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,261.05 : 15,534.11 = 6,782.09 : x
  2. Step 2: Convert to fraction form
    11,261.05/15,534.11 = 6,782.09/x
  3. Step 3: Cross multiply
    11,261.05x = 15,534.11 × 6,782.09
  4. Step 4: Simplify right side
    11,261.05x = 105,353,671.37
  5. Step 5: Solve for x
    x = 105,353,671.37/11,261.05
  6. Step 6: Final answer
    x = 9,355.58

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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.