Home / 8,430.97-12,639.31-3,497.53

Finding the Fourth Proportional to 8,430.97, 12,639.31 and 3,497.53

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Solution

The fourth proportional to 8,430.97, 12,639.31 and 3,497.53 is: 5,243.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.97 : 12,639.31 = 3,497.53 : x
  2. Step 2: Convert to fraction form
    8,430.97/12,639.31 = 3,497.53/x
  3. Step 3: Cross multiply
    8,430.97x = 12,639.31 × 3,497.53
  4. Step 4: Simplify right side
    8,430.97x = 44,206,365.90
  5. Step 5: Solve for x
    x = 44,206,365.90/8,430.97
  6. Step 6: Final answer
    x = 5,243.33

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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.