Home / 8,470.89-12,701.19-3,790.02

Finding the Fourth Proportional to 8,470.89, 12,701.19 and 3,790.02

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Solution

The fourth proportional to 8,470.89, 12,701.19 and 3,790.02 is: 5,682.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,470.89 : 12,701.19 = 3,790.02 : x
  2. Step 2: Convert to fraction form
    8,470.89/12,701.19 = 3,790.02/x
  3. Step 3: Cross multiply
    8,470.89x = 12,701.19 × 3,790.02
  4. Step 4: Simplify right side
    8,470.89x = 48,137,825.97
  5. Step 5: Solve for x
    x = 48,137,825.97/8,470.89
  6. Step 6: Final answer
    x = 5,682.74

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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.