Home / 9,120.36-13,677.30-2,878.50

Finding the Fourth Proportional to 9,120.36, 13,677.30 and 2,878.50

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Solution

The fourth proportional to 9,120.36, 13,677.30 and 2,878.50 is: 4,316.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.36 : 13,677.30 = 2,878.50 : x
  2. Step 2: Convert to fraction form
    9,120.36/13,677.30 = 2,878.50/x
  3. Step 3: Cross multiply
    9,120.36x = 13,677.30 × 2,878.50
  4. Step 4: Simplify right side
    9,120.36x = 39,370,108.05
  5. Step 5: Solve for x
    x = 39,370,108.05/9,120.36
  6. Step 6: Final answer
    x = 4,316.73

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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.