Home / 7,427.20-11,124.60-4,500.40

Finding the Fourth Proportional to 7,427.20, 11,124.60 and 4,500.40

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Solution

The fourth proportional to 7,427.20, 11,124.60 and 4,500.40 is: 6,740.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.20 : 11,124.60 = 4,500.40 : x
  2. Step 2: Convert to fraction form
    7,427.20/11,124.60 = 4,500.40/x
  3. Step 3: Cross multiply
    7,427.20x = 11,124.60 × 4,500.40
  4. Step 4: Simplify right side
    7,427.20x = 50,065,149.84
  5. Step 5: Solve for x
    x = 50,065,149.84/7,427.20
  6. Step 6: Final answer
    x = 6,740.78

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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.