Home / 6,653.04-9,180.72-4,138.80

Finding the Fourth Proportional to 6,653.04, 9,180.72 and 4,138.80

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Solution

The fourth proportional to 6,653.04, 9,180.72 and 4,138.80 is: 5,711.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,653.04 : 9,180.72 = 4,138.80 : x
  2. Step 2: Convert to fraction form
    6,653.04/9,180.72 = 4,138.80/x
  3. Step 3: Cross multiply
    6,653.04x = 9,180.72 × 4,138.80
  4. Step 4: Simplify right side
    6,653.04x = 37,997,163.94
  5. Step 5: Solve for x
    x = 37,997,163.94/6,653.04
  6. Step 6: Final answer
    x = 5,711.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.