Home / 8,516.55-12,756.36-4,124.80

Finding the Fourth Proportional to 8,516.55, 12,756.36 and 4,124.80

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Solution

The fourth proportional to 8,516.55, 12,756.36 and 4,124.80 is: 6,178.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,516.55 : 12,756.36 = 4,124.80 : x
  2. Step 2: Convert to fraction form
    8,516.55/12,756.36 = 4,124.80/x
  3. Step 3: Cross multiply
    8,516.55x = 12,756.36 × 4,124.80
  4. Step 4: Simplify right side
    8,516.55x = 52,617,369.95
  5. Step 5: Solve for x
    x = 52,617,369.95/8,516.55
  6. Step 6: Final answer
    x = 6,178.25

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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.