Home / 11,028.63-15,221.91-6,783.34

Finding the Fourth Proportional to 11,028.63, 15,221.91 and 6,783.34

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Solution

The fourth proportional to 11,028.63, 15,221.91 and 6,783.34 is: 9,362.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,028.63 : 15,221.91 = 6,783.34 : x
  2. Step 2: Convert to fraction form
    11,028.63/15,221.91 = 6,783.34/x
  3. Step 3: Cross multiply
    11,028.63x = 15,221.91 × 6,783.34
  4. Step 4: Simplify right side
    11,028.63x = 103,255,390.98
  5. Step 5: Solve for x
    x = 103,255,390.98/11,028.63
  6. Step 6: Final answer
    x = 9,362.49

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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.