Home / 8,516.18-12,776.32-2,672.79

Finding the Fourth Proportional to 8,516.18, 12,776.32 and 2,672.79

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Solution

The fourth proportional to 8,516.18, 12,776.32 and 2,672.79 is: 4,009.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,516.18 : 12,776.32 = 2,672.79 : x
  2. Step 2: Convert to fraction form
    8,516.18/12,776.32 = 2,672.79/x
  3. Step 3: Cross multiply
    8,516.18x = 12,776.32 × 2,672.79
  4. Step 4: Simplify right side
    8,516.18x = 34,148,349.77
  5. Step 5: Solve for x
    x = 34,148,349.77/8,516.18
  6. Step 6: Final answer
    x = 4,009.82

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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.