Home / 8,379.41-12,554.55-5,085.56

Finding the Fourth Proportional to 8,379.41, 12,554.55 and 5,085.56

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Solution

The fourth proportional to 8,379.41, 12,554.55 and 5,085.56 is: 7,619.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,379.41 : 12,554.55 = 5,085.56 : x
  2. Step 2: Convert to fraction form
    8,379.41/12,554.55 = 5,085.56/x
  3. Step 3: Cross multiply
    8,379.41x = 12,554.55 × 5,085.56
  4. Step 4: Simplify right side
    8,379.41x = 63,846,854.53
  5. Step 5: Solve for x
    x = 63,846,854.53/8,379.41
  6. Step 6: Final answer
    x = 7,619.50

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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.