Home / 8,180.76-11,289.06-4,643.50

Finding the Fourth Proportional to 8,180.76, 11,289.06 and 4,643.50

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Solution

The fourth proportional to 8,180.76, 11,289.06 and 4,643.50 is: 6,407.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180.76 : 11,289.06 = 4,643.50 : x
  2. Step 2: Convert to fraction form
    8,180.76/11,289.06 = 4,643.50/x
  3. Step 3: Cross multiply
    8,180.76x = 11,289.06 × 4,643.50
  4. Step 4: Simplify right side
    8,180.76x = 52,420,750.11
  5. Step 5: Solve for x
    x = 52,420,750.11/8,180.76
  6. Step 6: Final answer
    x = 6,407.81

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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.