Home / 11,245.36-15,518.64-6,530.56

Finding the Fourth Proportional to 11,245.36, 15,518.64 and 6,530.56

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Solution

The fourth proportional to 11,245.36, 15,518.64 and 6,530.56 is: 9,012.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,245.36 : 15,518.64 = 6,530.56 : x
  2. Step 2: Convert to fraction form
    11,245.36/15,518.64 = 6,530.56/x
  3. Step 3: Cross multiply
    11,245.36x = 15,518.64 × 6,530.56
  4. Step 4: Simplify right side
    11,245.36x = 101,345,409.64
  5. Step 5: Solve for x
    x = 101,345,409.64/11,245.36
  6. Step 6: Final answer
    x = 9,012.20

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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.