Home / 8,184.42-12,280.95-3,567.78

Finding the Fourth Proportional to 8,184.42, 12,280.95 and 3,567.78

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Solution

The fourth proportional to 8,184.42, 12,280.95 and 3,567.78 is: 5,353.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,184.42 : 12,280.95 = 3,567.78 : x
  2. Step 2: Convert to fraction form
    8,184.42/12,280.95 = 3,567.78/x
  3. Step 3: Cross multiply
    8,184.42x = 12,280.95 × 3,567.78
  4. Step 4: Simplify right side
    8,184.42x = 43,815,727.79
  5. Step 5: Solve for x
    x = 43,815,727.79/8,184.42
  6. Step 6: Final answer
    x = 5,353.55

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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.