Home / 18,136.94-25,016.38-14,779.76

Finding the Fourth Proportional to 18,136.94, 25,016.38 and 14,779.76

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Solution

The fourth proportional to 18,136.94, 25,016.38 and 14,779.76 is: 20,385.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,136.94 : 25,016.38 = 14,779.76 : x
  2. Step 2: Convert to fraction form
    18,136.94/25,016.38 = 14,779.76/x
  3. Step 3: Cross multiply
    18,136.94x = 25,016.38 × 14,779.76
  4. Step 4: Simplify right side
    18,136.94x = 369,735,930.44
  5. Step 5: Solve for x
    x = 369,735,930.44/18,136.94
  6. Step 6: Final answer
    x = 20,385.80

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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.