Home / 7,157.04-10,739.38-5,389.89

Finding the Fourth Proportional to 7,157.04, 10,739.38 and 5,389.89

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Solution

The fourth proportional to 7,157.04, 10,739.38 and 5,389.89 is: 8,087.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,157.04 : 10,739.38 = 5,389.89 : x
  2. Step 2: Convert to fraction form
    7,157.04/10,739.38 = 5,389.89/x
  3. Step 3: Cross multiply
    7,157.04x = 10,739.38 × 5,389.89
  4. Step 4: Simplify right side
    7,157.04x = 57,884,076.87
  5. Step 5: Solve for x
    x = 57,884,076.87/7,157.04
  6. Step 6: Final answer
    x = 8,087.71

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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.