Home / 8,385.84-12,579.18-3,192.12

Finding the Fourth Proportional to 8,385.84, 12,579.18 and 3,192.12

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Solution

The fourth proportional to 8,385.84, 12,579.18 and 3,192.12 is: 4,788.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,385.84 : 12,579.18 = 3,192.12 : x
  2. Step 2: Convert to fraction form
    8,385.84/12,579.18 = 3,192.12/x
  3. Step 3: Cross multiply
    8,385.84x = 12,579.18 × 3,192.12
  4. Step 4: Simplify right side
    8,385.84x = 40,154,252.06
  5. Step 5: Solve for x
    x = 40,154,252.06/8,385.84
  6. Step 6: Final answer
    x = 4,788.34

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Double scale
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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.