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Finding the Fourth Proportional to 8,351.81, 11,499.27 and 7,090.25

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Solution

The fourth proportional to 8,351.81, 11,499.27 and 7,090.25 is: 9,762.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,351.81 : 11,499.27 = 7,090.25 : x
  2. Step 2: Convert to fraction form
    8,351.81/11,499.27 = 7,090.25/x
  3. Step 3: Cross multiply
    8,351.81x = 11,499.27 × 7,090.25
  4. Step 4: Simplify right side
    8,351.81x = 81,532,699.12
  5. Step 5: Solve for x
    x = 81,532,699.12/8,351.81
  6. Step 6: Final answer
    x = 9,762.28

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1.5x scale

Why These Related Problems?

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