Home / 9,270.05-13,888.87-7,720.02

Finding the Fourth Proportional to 9,270.05, 13,888.87 and 7,720.02

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Solution

The fourth proportional to 9,270.05, 13,888.87 and 7,720.02 is: 11,566.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,270.05 : 13,888.87 = 7,720.02 : x
  2. Step 2: Convert to fraction form
    9,270.05/13,888.87 = 7,720.02/x
  3. Step 3: Cross multiply
    9,270.05x = 13,888.87 × 7,720.02
  4. Step 4: Simplify right side
    9,270.05x = 107,222,334.88
  5. Step 5: Solve for x
    x = 107,222,334.88/9,270.05
  6. Step 6: Final answer
    x = 11,566.54

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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.