Home / 18,817.98-28,226.99-4,779.06

Finding the Fourth Proportional to 18,817.98, 28,226.99 and 4,779.06

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Solution

The fourth proportional to 18,817.98, 28,226.99 and 4,779.06 is: 7,168.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,817.98 : 28,226.99 = 4,779.06 : x
  2. Step 2: Convert to fraction form
    18,817.98/28,226.99 = 4,779.06/x
  3. Step 3: Cross multiply
    18,817.98x = 28,226.99 × 4,779.06
  4. Step 4: Simplify right side
    18,817.98x = 134,898,578.71
  5. Step 5: Solve for x
    x = 134,898,578.71/18,817.98
  6. Step 6: Final answer
    x = 7,168.60

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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.