Home / 8,516.61-12,777.21-2,970.27

Finding the Fourth Proportional to 8,516.61, 12,777.21 and 2,970.27

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Solution

The fourth proportional to 8,516.61, 12,777.21 and 2,970.27 is: 4,456.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,516.61 : 12,777.21 = 2,970.27 : x
  2. Step 2: Convert to fraction form
    8,516.61/12,777.21 = 2,970.27/x
  3. Step 3: Cross multiply
    8,516.61x = 12,777.21 × 2,970.27
  4. Step 4: Simplify right side
    8,516.61x = 37,951,763.55
  5. Step 5: Solve for x
    x = 37,951,763.55/8,516.61
  6. Step 6: Final answer
    x = 4,456.21

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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.