Home / 7,273.20-10,913.40-4,155.60

Finding the Fourth Proportional to 7,273.20, 10,913.40 and 4,155.60

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Solution

The fourth proportional to 7,273.20, 10,913.40 and 4,155.60 is: 6,235.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,273.20 : 10,913.40 = 4,155.60 : x
  2. Step 2: Convert to fraction form
    7,273.20/10,913.40 = 4,155.60/x
  3. Step 3: Cross multiply
    7,273.20x = 10,913.40 × 4,155.60
  4. Step 4: Simplify right side
    7,273.20x = 45,351,725.04
  5. Step 5: Solve for x
    x = 45,351,725.04/7,273.20
  6. Step 6: Final answer
    x = 6,235.46

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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.