Home / 8,986.23-13,478.87-3,439.15

Finding the Fourth Proportional to 8,986.23, 13,478.87 and 3,439.15

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Solution

The fourth proportional to 8,986.23, 13,478.87 and 3,439.15 is: 5,158.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986.23 : 13,478.87 = 3,439.15 : x
  2. Step 2: Convert to fraction form
    8,986.23/13,478.87 = 3,439.15/x
  3. Step 3: Cross multiply
    8,986.23x = 13,478.87 × 3,439.15
  4. Step 4: Simplify right side
    8,986.23x = 46,355,855.76
  5. Step 5: Solve for x
    x = 46,355,855.76/8,986.23
  6. Step 6: Final answer
    x = 5,158.54

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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.