Home / 11,130.75-15,360.44-6,162.75

Finding the Fourth Proportional to 11,130.75, 15,360.44 and 6,162.75

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Solution

The fourth proportional to 11,130.75, 15,360.44 and 6,162.75 is: 8,504.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,130.75 : 15,360.44 = 6,162.75 : x
  2. Step 2: Convert to fraction form
    11,130.75/15,360.44 = 6,162.75/x
  3. Step 3: Cross multiply
    11,130.75x = 15,360.44 × 6,162.75
  4. Step 4: Simplify right side
    11,130.75x = 94,662,520.80
  5. Step 5: Solve for x
    x = 94,662,520.80/11,130.75
  6. Step 6: Final answer
    x = 8,504.60

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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.