Home / 11,220.36-15,483.86-6,505.48

Finding the Fourth Proportional to 11,220.36, 15,483.86 and 6,505.48

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Solution

The fourth proportional to 11,220.36, 15,483.86 and 6,505.48 is: 8,977.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.36 : 15,483.86 = 6,505.48 : x
  2. Step 2: Convert to fraction form
    11,220.36/15,483.86 = 6,505.48/x
  3. Step 3: Cross multiply
    11,220.36x = 15,483.86 × 6,505.48
  4. Step 4: Simplify right side
    11,220.36x = 100,729,941.55
  5. Step 5: Solve for x
    x = 100,729,941.55/11,220.36
  6. Step 6: Final answer
    x = 8,977.43

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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.