Home / 7,578.40-11,368.14-2,647.48

Finding the Fourth Proportional to 7,578.40, 11,368.14 and 2,647.48

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Solution

The fourth proportional to 7,578.40, 11,368.14 and 2,647.48 is: 3,971.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,578.40 : 11,368.14 = 2,647.48 : x
  2. Step 2: Convert to fraction form
    7,578.40/11,368.14 = 2,647.48/x
  3. Step 3: Cross multiply
    7,578.40x = 11,368.14 × 2,647.48
  4. Step 4: Simplify right side
    7,578.40x = 30,096,923.29
  5. Step 5: Solve for x
    x = 30,096,923.29/7,578.40
  6. Step 6: Final answer
    x = 3,971.41

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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.