Home / 14,758.50-20,365.30-8,469.66

Finding the Fourth Proportional to 14,758.50, 20,365.30 and 8,469.66

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Solution

The fourth proportional to 14,758.50, 20,365.30 and 8,469.66 is: 11,687.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,758.50 : 20,365.30 = 8,469.66 : x
  2. Step 2: Convert to fraction form
    14,758.50/20,365.30 = 8,469.66/x
  3. Step 3: Cross multiply
    14,758.50x = 20,365.30 × 8,469.66
  4. Step 4: Simplify right side
    14,758.50x = 172,487,166.80
  5. Step 5: Solve for x
    x = 172,487,166.80/14,758.50
  6. Step 6: Final answer
    x = 11,687.31

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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.