Home / 8,685.90-13,028.84-2,445.91

Finding the Fourth Proportional to 8,685.90, 13,028.84 and 2,445.91

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Solution

The fourth proportional to 8,685.90, 13,028.84 and 2,445.91 is: 3,668.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.90 : 13,028.84 = 2,445.91 : x
  2. Step 2: Convert to fraction form
    8,685.90/13,028.84 = 2,445.91/x
  3. Step 3: Cross multiply
    8,685.90x = 13,028.84 × 2,445.91
  4. Step 4: Simplify right side
    8,685.90x = 31,867,370.04
  5. Step 5: Solve for x
    x = 31,867,370.04/8,685.90
  6. Step 6: Final answer
    x = 3,668.86

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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.