Home / 8,178.77-12,263.67-2,554.89

Finding the Fourth Proportional to 8,178.77, 12,263.67 and 2,554.89

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Solution

The fourth proportional to 8,178.77, 12,263.67 and 2,554.89 is: 3,830.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.77 : 12,263.67 = 2,554.89 : x
  2. Step 2: Convert to fraction form
    8,178.77/12,263.67 = 2,554.89/x
  3. Step 3: Cross multiply
    8,178.77x = 12,263.67 × 2,554.89
  4. Step 4: Simplify right side
    8,178.77x = 31,332,327.85
  5. Step 5: Solve for x
    x = 31,332,327.85/8,178.77
  6. Step 6: Final answer
    x = 3,830.94

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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.