Home / 6,117.88-9,157.36-4,378

Finding the Fourth Proportional to 6,117.88, 9,157.36 and 4,378

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Solution

The fourth proportional to 6,117.88, 9,157.36 and 4,378 is: 6,553.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,117.88 : 9,157.36 = 4,378 : x
  2. Step 2: Convert to fraction form
    6,117.88/9,157.36 = 4,378/x
  3. Step 3: Cross multiply
    6,117.88x = 9,157.36 × 4,378
  4. Step 4: Simplify right side
    6,117.88x = 40,090,922.08
  5. Step 5: Solve for x
    x = 40,090,922.08/6,117.88
  6. Step 6: Final answer
    x = 6,553.07

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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.