Home / 18,705.42-28,050.84-7,012.26

Finding the Fourth Proportional to 18,705.42, 28,050.84 and 7,012.26

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Solution

The fourth proportional to 18,705.42, 28,050.84 and 7,012.26 is: 10,515.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,705.42 : 28,050.84 = 7,012.26 : x
  2. Step 2: Convert to fraction form
    18,705.42/28,050.84 = 7,012.26/x
  3. Step 3: Cross multiply
    18,705.42x = 28,050.84 × 7,012.26
  4. Step 4: Simplify right side
    18,705.42x = 196,699,783.30
  5. Step 5: Solve for x
    x = 196,699,783.30/18,705.42
  6. Step 6: Final answer
    x = 10,515.66

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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.