Home / 10,273.14-15,409.80-2,878.20

Finding the Fourth Proportional to 10,273.14, 15,409.80 and 2,878.20

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Solution

The fourth proportional to 10,273.14, 15,409.80 and 2,878.20 is: 4,317.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,273.14 : 15,409.80 = 2,878.20 : x
  2. Step 2: Convert to fraction form
    10,273.14/15,409.80 = 2,878.20/x
  3. Step 3: Cross multiply
    10,273.14x = 15,409.80 × 2,878.20
  4. Step 4: Simplify right side
    10,273.14x = 44,352,486.36
  5. Step 5: Solve for x
    x = 44,352,486.36/10,273.14
  6. Step 6: Final answer
    x = 4,317.33

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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.