Home / 11,320.06-16,986.70-4,745.74

Finding the Fourth Proportional to 11,320.06, 16,986.70 and 4,745.74

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Solution

The fourth proportional to 11,320.06, 16,986.70 and 4,745.74 is: 7,121.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.06 : 16,986.70 = 4,745.74 : x
  2. Step 2: Convert to fraction form
    11,320.06/16,986.70 = 4,745.74/x
  3. Step 3: Cross multiply
    11,320.06x = 16,986.70 × 4,745.74
  4. Step 4: Simplify right side
    11,320.06x = 80,614,461.66
  5. Step 5: Solve for x
    x = 80,614,461.66/11,320.06
  6. Step 6: Final answer
    x = 7,121.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.