Home / 11,188.40-16,782.60-10,074.80

Finding the Fourth Proportional to 11,188.40, 16,782.60 and 10,074.80

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Solution

The fourth proportional to 11,188.40, 16,782.60 and 10,074.80 is: 15,112.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.40 : 16,782.60 = 10,074.80 : x
  2. Step 2: Convert to fraction form
    11,188.40/16,782.60 = 10,074.80/x
  3. Step 3: Cross multiply
    11,188.40x = 16,782.60 × 10,074.80
  4. Step 4: Simplify right side
    11,188.40x = 169,081,338.48
  5. Step 5: Solve for x
    x = 169,081,338.48/11,188.40
  6. Step 6: Final answer
    x = 15,112.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.