Home / 10,065.60-15,100.20-4,222.80

Finding the Fourth Proportional to 10,065.60, 15,100.20 and 4,222.80

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Solution

The fourth proportional to 10,065.60, 15,100.20 and 4,222.80 is: 6,334.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,065.60 : 15,100.20 = 4,222.80 : x
  2. Step 2: Convert to fraction form
    10,065.60/15,100.20 = 4,222.80/x
  3. Step 3: Cross multiply
    10,065.60x = 15,100.20 × 4,222.80
  4. Step 4: Simplify right side
    10,065.60x = 63,765,124.56
  5. Step 5: Solve for x
    x = 63,765,124.56/10,065.60
  6. Step 6: Final answer
    x = 6,334.96

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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.