Home / 8,705.43-12,018.23-6,672.33

Finding the Fourth Proportional to 8,705.43, 12,018.23 and 6,672.33

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Solution

The fourth proportional to 8,705.43, 12,018.23 and 6,672.33 is: 9,211.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.43 : 12,018.23 = 6,672.33 : x
  2. Step 2: Convert to fraction form
    8,705.43/12,018.23 = 6,672.33/x
  3. Step 3: Cross multiply
    8,705.43x = 12,018.23 × 6,672.33
  4. Step 4: Simplify right side
    8,705.43x = 80,189,596.58
  5. Step 5: Solve for x
    x = 80,189,596.58/8,705.43
  6. Step 6: Final answer
    x = 9,211.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.