Home / 12,482.55-18,705.33-5,456.07

Finding the Fourth Proportional to 12,482.55, 18,705.33 and 5,456.07

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Solution

The fourth proportional to 12,482.55, 18,705.33 and 5,456.07 is: 8,176.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.55 : 18,705.33 = 5,456.07 : x
  2. Step 2: Convert to fraction form
    12,482.55/18,705.33 = 5,456.07/x
  3. Step 3: Cross multiply
    12,482.55x = 18,705.33 × 5,456.07
  4. Step 4: Simplify right side
    12,482.55x = 102,057,589.85
  5. Step 5: Solve for x
    x = 102,057,589.85/12,482.55
  6. Step 6: Final answer
    x = 8,176.02

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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.