Home / 11,220.75-15,483.75-6,505.35

Finding the Fourth Proportional to 11,220.75, 15,483.75 and 6,505.35

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Solution

The fourth proportional to 11,220.75, 15,483.75 and 6,505.35 is: 8,976.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.75 : 15,483.75 = 6,505.35 : x
  2. Step 2: Convert to fraction form
    11,220.75/15,483.75 = 6,505.35/x
  3. Step 3: Cross multiply
    11,220.75x = 15,483.75 × 6,505.35
  4. Step 4: Simplify right side
    11,220.75x = 100,727,213.06
  5. Step 5: Solve for x
    x = 100,727,213.06/11,220.75
  6. Step 6: Final answer
    x = 8,976.87

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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.