Home / 11,518.58-15,896.86-6,803.30

Finding the Fourth Proportional to 11,518.58, 15,896.86 and 6,803.30

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Solution

The fourth proportional to 11,518.58, 15,896.86 and 6,803.30 is: 9,389.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.58 : 15,896.86 = 6,803.30 : x
  2. Step 2: Convert to fraction form
    11,518.58/15,896.86 = 6,803.30/x
  3. Step 3: Cross multiply
    11,518.58x = 15,896.86 × 6,803.30
  4. Step 4: Simplify right side
    11,518.58x = 108,151,107.64
  5. Step 5: Solve for x
    x = 108,151,107.64/11,518.58
  6. Step 6: Final answer
    x = 9,389.27

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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.