Home / 9,018.45-13,528.96-2,778.97

Finding the Fourth Proportional to 9,018.45, 13,528.96 and 2,778.97

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Solution

The fourth proportional to 9,018.45, 13,528.96 and 2,778.97 is: 4,168.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,018.45 : 13,528.96 = 2,778.97 : x
  2. Step 2: Convert to fraction form
    9,018.45/13,528.96 = 2,778.97/x
  3. Step 3: Cross multiply
    9,018.45x = 13,528.96 × 2,778.97
  4. Step 4: Simplify right side
    9,018.45x = 37,596,573.97
  5. Step 5: Solve for x
    x = 37,596,573.97/9,018.45
  6. Step 6: Final answer
    x = 4,168.85

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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.