Home / 13,482.84-20,205.82-8,555.94

Finding the Fourth Proportional to 13,482.84, 20,205.82 and 8,555.94

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Solution

The fourth proportional to 13,482.84, 20,205.82 and 8,555.94 is: 12,822.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,482.84 : 20,205.82 = 8,555.94 : x
  2. Step 2: Convert to fraction form
    13,482.84/20,205.82 = 8,555.94/x
  3. Step 3: Cross multiply
    13,482.84x = 20,205.82 × 8,555.94
  4. Step 4: Simplify right side
    13,482.84x = 172,879,783.57
  5. Step 5: Solve for x
    x = 172,879,783.57/13,482.84
  6. Step 6: Final answer
    x = 12,822.21

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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.