Home / 8,412.60-12,618.90-4,246.88

Finding the Fourth Proportional to 8,412.60, 12,618.90 and 4,246.88

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Solution

The fourth proportional to 8,412.60, 12,618.90 and 4,246.88 is: 6,370.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412.60 : 12,618.90 = 4,246.88 : x
  2. Step 2: Convert to fraction form
    8,412.60/12,618.90 = 4,246.88/x
  3. Step 3: Cross multiply
    8,412.60x = 12,618.90 × 4,246.88
  4. Step 4: Simplify right side
    8,412.60x = 53,590,981.33
  5. Step 5: Solve for x
    x = 53,590,981.33/8,412.60
  6. Step 6: Final answer
    x = 6,370.32

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Similar ratio
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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.