Home / 8,383.58-12,575.36-2,143.60

Finding the Fourth Proportional to 8,383.58, 12,575.36 and 2,143.60

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Solution

The fourth proportional to 8,383.58, 12,575.36 and 2,143.60 is: 3,215.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,383.58 : 12,575.36 = 2,143.60 : x
  2. Step 2: Convert to fraction form
    8,383.58/12,575.36 = 2,143.60/x
  3. Step 3: Cross multiply
    8,383.58x = 12,575.36 × 2,143.60
  4. Step 4: Simplify right side
    8,383.58x = 26,956,541.70
  5. Step 5: Solve for x
    x = 26,956,541.70/8,383.58
  6. Step 6: Final answer
    x = 3,215.40

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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.