Home / 8,254.64-11,357.62-7,131.98

Finding the Fourth Proportional to 8,254.64, 11,357.62 and 7,131.98

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Solution

The fourth proportional to 8,254.64, 11,357.62 and 7,131.98 is: 9,812.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,254.64 : 11,357.62 = 7,131.98 : x
  2. Step 2: Convert to fraction form
    8,254.64/11,357.62 = 7,131.98/x
  3. Step 3: Cross multiply
    8,254.64x = 11,357.62 × 7,131.98
  4. Step 4: Simplify right side
    8,254.64x = 81,002,329.25
  5. Step 5: Solve for x
    x = 81,002,329.25/8,254.64
  6. Step 6: Final answer
    x = 9,812.94

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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.