Home / 8,178.76-12,267.33-2,631.07

Finding the Fourth Proportional to 8,178.76, 12,267.33 and 2,631.07

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Solution

The fourth proportional to 8,178.76, 12,267.33 and 2,631.07 is: 3,946.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.76 : 12,267.33 = 2,631.07 : x
  2. Step 2: Convert to fraction form
    8,178.76/12,267.33 = 2,631.07/x
  3. Step 3: Cross multiply
    8,178.76x = 12,267.33 × 2,631.07
  4. Step 4: Simplify right side
    8,178.76x = 32,276,203.94
  5. Step 5: Solve for x
    x = 32,276,203.94/8,178.76
  6. Step 6: Final answer
    x = 3,946.34

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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.