Home / 8,180-11,287.50-4,643.24

Finding the Fourth Proportional to 8,180, 11,287.50 and 4,643.24

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Solution

The fourth proportional to 8,180, 11,287.50 and 4,643.24 is: 6,407.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180 : 11,287.50 = 4,643.24 : x
  2. Step 2: Convert to fraction form
    8,180/11,287.50 = 4,643.24/x
  3. Step 3: Cross multiply
    8,180x = 11,287.50 × 4,643.24
  4. Step 4: Simplify right side
    8,180x = 52,410,571.50
  5. Step 5: Solve for x
    x = 52,410,571.50/8,180
  6. Step 6: Final answer
    x = 6,407.16

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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.