Home / 12,606.49-18,908.11-4,286.17

Finding the Fourth Proportional to 12,606.49, 18,908.11 and 4,286.17

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Solution

The fourth proportional to 12,606.49, 18,908.11 and 4,286.17 is: 6,428.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,606.49 : 18,908.11 = 4,286.17 : x
  2. Step 2: Convert to fraction form
    12,606.49/18,908.11 = 4,286.17/x
  3. Step 3: Cross multiply
    12,606.49x = 18,908.11 × 4,286.17
  4. Step 4: Simplify right side
    12,606.49x = 81,043,373.84
  5. Step 5: Solve for x
    x = 81,043,373.84/12,606.49
  6. Step 6: Final answer
    x = 6,428.70

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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.