Home / 18,817.97-28,226.97-4,779.05

Finding the Fourth Proportional to 18,817.97, 28,226.97 and 4,779.05

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Solution

The fourth proportional to 18,817.97, 28,226.97 and 4,779.05 is: 7,168.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,817.97 : 28,226.97 = 4,779.05 : x
  2. Step 2: Convert to fraction form
    18,817.97/28,226.97 = 4,779.05/x
  3. Step 3: Cross multiply
    18,817.97x = 28,226.97 × 4,779.05
  4. Step 4: Simplify right side
    18,817.97x = 134,898,047.77
  5. Step 5: Solve for x
    x = 134,898,047.77/18,817.97
  6. Step 6: Final answer
    x = 7,168.58

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1.5x scale

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.