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Finding the Fourth Proportional to 12,994.72, 19,492.08 and 4,230.52

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Solution

The fourth proportional to 12,994.72, 19,492.08 and 4,230.52 is: 6,345.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,994.72 : 19,492.08 = 4,230.52 : x
  2. Step 2: Convert to fraction form
    12,994.72/19,492.08 = 4,230.52/x
  3. Step 3: Cross multiply
    12,994.72x = 19,492.08 × 4,230.52
  4. Step 4: Simplify right side
    12,994.72x = 82,461,634.28
  5. Step 5: Solve for x
    x = 82,461,634.28/12,994.72
  6. Step 6: Final answer
    x = 6,345.78

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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.