Home / 14,772.88-20,385.77-8,485.26

Finding the Fourth Proportional to 14,772.88, 20,385.77 and 8,485.26

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Solution

The fourth proportional to 14,772.88, 20,385.77 and 8,485.26 is: 11,709.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,772.88 : 20,385.77 = 8,485.26 : x
  2. Step 2: Convert to fraction form
    14,772.88/20,385.77 = 8,485.26/x
  3. Step 3: Cross multiply
    14,772.88x = 20,385.77 × 8,485.26
  4. Step 4: Simplify right side
    14,772.88x = 172,978,558.75
  5. Step 5: Solve for x
    x = 172,978,558.75/14,772.88
  6. Step 6: Final answer
    x = 11,709.20

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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.