Home / 12,570.70-18,863.55-4,671.88

Finding the Fourth Proportional to 12,570.70, 18,863.55 and 4,671.88

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Solution

The fourth proportional to 12,570.70, 18,863.55 and 4,671.88 is: 7,010.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570.70 : 18,863.55 = 4,671.88 : x
  2. Step 2: Convert to fraction form
    12,570.70/18,863.55 = 4,671.88/x
  3. Step 3: Cross multiply
    12,570.70x = 18,863.55 × 4,671.88
  4. Step 4: Simplify right side
    12,570.70x = 88,128,241.97
  5. Step 5: Solve for x
    x = 88,128,241.97/12,570.70
  6. Step 6: Final answer
    x = 7,010.61

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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.