Home / 5,518.94-8,219.23-5,487.35

Finding the Fourth Proportional to 5,518.94, 8,219.23 and 5,487.35

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Solution

The fourth proportional to 5,518.94, 8,219.23 and 5,487.35 is: 8,172.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.94 : 8,219.23 = 5,487.35 : x
  2. Step 2: Convert to fraction form
    5,518.94/8,219.23 = 5,487.35/x
  3. Step 3: Cross multiply
    5,518.94x = 8,219.23 × 5,487.35
  4. Step 4: Simplify right side
    5,518.94x = 45,101,791.74
  5. Step 5: Solve for x
    x = 45,101,791.74/5,518.94
  6. Step 6: Final answer
    x = 8,172.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.