Home / 8,140.64-11,236.62-5,303.03

Finding the Fourth Proportional to 8,140.64, 11,236.62 and 5,303.03

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Solution

The fourth proportional to 8,140.64, 11,236.62 and 5,303.03 is: 7,319.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.64 : 11,236.62 = 5,303.03 : x
  2. Step 2: Convert to fraction form
    8,140.64/11,236.62 = 5,303.03/x
  3. Step 3: Cross multiply
    8,140.64x = 11,236.62 × 5,303.03
  4. Step 4: Simplify right side
    8,140.64x = 59,588,076.78
  5. Step 5: Solve for x
    x = 59,588,076.78/8,140.64
  6. Step 6: Final answer
    x = 7,319.83

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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.