Home / 8,558.79-12,825.63-3,880.23

Finding the Fourth Proportional to 8,558.79, 12,825.63 and 3,880.23

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Solution

The fourth proportional to 8,558.79, 12,825.63 and 3,880.23 is: 5,814.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,558.79 : 12,825.63 = 3,880.23 : x
  2. Step 2: Convert to fraction form
    8,558.79/12,825.63 = 3,880.23/x
  3. Step 3: Cross multiply
    8,558.79x = 12,825.63 × 3,880.23
  4. Step 4: Simplify right side
    8,558.79x = 49,766,394.29
  5. Step 5: Solve for x
    x = 49,766,394.29/8,558.79
  6. Step 6: Final answer
    x = 5,814.65

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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.