Home / 9,155.31-13,720.93-5,208.37

Finding the Fourth Proportional to 9,155.31, 13,720.93 and 5,208.37

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Solution

The fourth proportional to 9,155.31, 13,720.93 and 5,208.37 is: 7,805.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,155.31 : 13,720.93 = 5,208.37 : x
  2. Step 2: Convert to fraction form
    9,155.31/13,720.93 = 5,208.37/x
  3. Step 3: Cross multiply
    9,155.31x = 13,720.93 × 5,208.37
  4. Step 4: Simplify right side
    9,155.31x = 71,463,680.18
  5. Step 5: Solve for x
    x = 71,463,680.18/9,155.31
  6. Step 6: Final answer
    x = 7,805.71

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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.