Home / 8,180.08-11,288.56-4,643.35

Finding the Fourth Proportional to 8,180.08, 11,288.56 and 4,643.35

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Solution

The fourth proportional to 8,180.08, 11,288.56 and 4,643.35 is: 6,407.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180.08 : 11,288.56 = 4,643.35 : x
  2. Step 2: Convert to fraction form
    8,180.08/11,288.56 = 4,643.35/x
  3. Step 3: Cross multiply
    8,180.08x = 11,288.56 × 4,643.35
  4. Step 4: Simplify right side
    8,180.08x = 52,416,735.08
  5. Step 5: Solve for x
    x = 52,416,735.08/8,180.08
  6. Step 6: Final answer
    x = 6,407.85

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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.