Home / 6,786.32-10,178.99-2,106.21

Finding the Fourth Proportional to 6,786.32, 10,178.99 and 2,106.21

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Solution

The fourth proportional to 6,786.32, 10,178.99 and 2,106.21 is: 3,159.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,786.32 : 10,178.99 = 2,106.21 : x
  2. Step 2: Convert to fraction form
    6,786.32/10,178.99 = 2,106.21/x
  3. Step 3: Cross multiply
    6,786.32x = 10,178.99 × 2,106.21
  4. Step 4: Simplify right side
    6,786.32x = 21,439,095.79
  5. Step 5: Solve for x
    x = 21,439,095.79/6,786.32
  6. Step 6: Final answer
    x = 3,159.17

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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.