Home / 8,181.28-11,291.34-4,643.74

Finding the Fourth Proportional to 8,181.28, 11,291.34 and 4,643.74

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Solution

The fourth proportional to 8,181.28, 11,291.34 and 4,643.74 is: 6,409.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,181.28 : 11,291.34 = 4,643.74 : x
  2. Step 2: Convert to fraction form
    8,181.28/11,291.34 = 4,643.74/x
  3. Step 3: Cross multiply
    8,181.28x = 11,291.34 × 4,643.74
  4. Step 4: Simplify right side
    8,181.28x = 52,434,047.21
  5. Step 5: Solve for x
    x = 52,434,047.21/8,181.28
  6. Step 6: Final answer
    x = 6,409.03

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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.