Home / 9,278.45-13,918.13-2,705.15

Finding the Fourth Proportional to 9,278.45, 13,918.13 and 2,705.15

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Solution

The fourth proportional to 9,278.45, 13,918.13 and 2,705.15 is: 4,057.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,278.45 : 13,918.13 = 2,705.15 : x
  2. Step 2: Convert to fraction form
    9,278.45/13,918.13 = 2,705.15/x
  3. Step 3: Cross multiply
    9,278.45x = 13,918.13 × 2,705.15
  4. Step 4: Simplify right side
    9,278.45x = 37,650,582.49
  5. Step 5: Solve for x
    x = 37,650,582.49/9,278.45
  6. Step 6: Final answer
    x = 4,057.85

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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.