Home / 6,115.04-9,168.60-4,161.20

Finding the Fourth Proportional to 6,115.04, 9,168.60 and 4,161.20

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Solution

The fourth proportional to 6,115.04, 9,168.60 and 4,161.20 is: 6,239.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.04 : 9,168.60 = 4,161.20 : x
  2. Step 2: Convert to fraction form
    6,115.04/9,168.60 = 4,161.20/x
  3. Step 3: Cross multiply
    6,115.04x = 9,168.60 × 4,161.20
  4. Step 4: Simplify right side
    6,115.04x = 38,152,378.32
  5. Step 5: Solve for x
    x = 38,152,378.32/6,115.04
  6. Step 6: Final answer
    x = 6,239.11

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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.