Home / 14,508.09-20,021.98-8,136.72

Finding the Fourth Proportional to 14,508.09, 20,021.98 and 8,136.72

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Solution

The fourth proportional to 14,508.09, 20,021.98 and 8,136.72 is: 11,229.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,508.09 : 20,021.98 = 8,136.72 : x
  2. Step 2: Convert to fraction form
    14,508.09/20,021.98 = 8,136.72/x
  3. Step 3: Cross multiply
    14,508.09x = 20,021.98 × 8,136.72
  4. Step 4: Simplify right side
    14,508.09x = 162,913,245.11
  5. Step 5: Solve for x
    x = 162,913,245.11/14,508.09
  6. Step 6: Final answer
    x = 11,229.13

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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.