Home / 6,518.49-9,778.32-1,838.55

Finding the Fourth Proportional to 6,518.49, 9,778.32 and 1,838.55

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Solution

The fourth proportional to 6,518.49, 9,778.32 and 1,838.55 is: 2,757.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,518.49 : 9,778.32 = 1,838.55 : x
  2. Step 2: Convert to fraction form
    6,518.49/9,778.32 = 1,838.55/x
  3. Step 3: Cross multiply
    6,518.49x = 9,778.32 × 1,838.55
  4. Step 4: Simplify right side
    6,518.49x = 17,977,930.24
  5. Step 5: Solve for x
    x = 17,977,930.24/6,518.49
  6. Step 6: Final answer
    x = 2,757.99

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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.