Home / 8,585.31-12,876.45-3,904.22

Finding the Fourth Proportional to 8,585.31, 12,876.45 and 3,904.22

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Solution

The fourth proportional to 8,585.31, 12,876.45 and 3,904.22 is: 5,855.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,585.31 : 12,876.45 = 3,904.22 : x
  2. Step 2: Convert to fraction form
    8,585.31/12,876.45 = 3,904.22/x
  3. Step 3: Cross multiply
    8,585.31x = 12,876.45 × 3,904.22
  4. Step 4: Simplify right side
    8,585.31x = 50,272,493.62
  5. Step 5: Solve for x
    x = 50,272,493.62/8,585.31
  6. Step 6: Final answer
    x = 5,855.64

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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.