Home / 8,388.36-11,572.47-5,403.78

Finding the Fourth Proportional to 8,388.36, 11,572.47 and 5,403.78

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Solution

The fourth proportional to 8,388.36, 11,572.47 and 5,403.78 is: 7,454.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,388.36 : 11,572.47 = 5,403.78 : x
  2. Step 2: Convert to fraction form
    8,388.36/11,572.47 = 5,403.78/x
  3. Step 3: Cross multiply
    8,388.36x = 11,572.47 × 5,403.78
  4. Step 4: Simplify right side
    8,388.36x = 62,535,081.94
  5. Step 5: Solve for x
    x = 62,535,081.94/8,388.36
  6. Step 6: Final answer
    x = 7,454.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.