Home / 6,112.40-9,168.60-5,728.40

Finding the Fourth Proportional to 6,112.40, 9,168.60 and 5,728.40

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Solution

The fourth proportional to 6,112.40, 9,168.60 and 5,728.40 is: 8,592.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,112.40 : 9,168.60 = 5,728.40 : x
  2. Step 2: Convert to fraction form
    6,112.40/9,168.60 = 5,728.40/x
  3. Step 3: Cross multiply
    6,112.40x = 9,168.60 × 5,728.40
  4. Step 4: Simplify right side
    6,112.40x = 52,521,408.24
  5. Step 5: Solve for x
    x = 52,521,408.24/6,112.40
  6. Step 6: Final answer
    x = 8,592.60

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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.