Home / 14,606.20-21,909.30-4,745.80

Finding the Fourth Proportional to 14,606.20, 21,909.30 and 4,745.80

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Solution

The fourth proportional to 14,606.20, 21,909.30 and 4,745.80 is: 7,118.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,606.20 : 21,909.30 = 4,745.80 : x
  2. Step 2: Convert to fraction form
    14,606.20/21,909.30 = 4,745.80/x
  3. Step 3: Cross multiply
    14,606.20x = 21,909.30 × 4,745.80
  4. Step 4: Simplify right side
    14,606.20x = 103,977,155.94
  5. Step 5: Solve for x
    x = 103,977,155.94/14,606.20
  6. Step 6: Final answer
    x = 7,118.70

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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.