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Finding the Fourth Proportional to 12,846.76, 19,270.12 and 3,612.76

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Solution

The fourth proportional to 12,846.76, 19,270.12 and 3,612.76 is: 5,419.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,846.76 : 19,270.12 = 3,612.76 : x
  2. Step 2: Convert to fraction form
    12,846.76/19,270.12 = 3,612.76/x
  3. Step 3: Cross multiply
    12,846.76x = 19,270.12 × 3,612.76
  4. Step 4: Simplify right side
    12,846.76x = 69,618,318.73
  5. Step 5: Solve for x
    x = 69,618,318.73/12,846.76
  6. Step 6: Final answer
    x = 5,419.13

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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.