Home / 12,426.57-18,628.34-4,640.49

Finding the Fourth Proportional to 12,426.57, 18,628.34 and 4,640.49

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Solution

The fourth proportional to 12,426.57, 18,628.34 and 4,640.49 is: 6,956.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,426.57 : 18,628.34 = 4,640.49 : x
  2. Step 2: Convert to fraction form
    12,426.57/18,628.34 = 4,640.49/x
  3. Step 3: Cross multiply
    12,426.57x = 18,628.34 × 4,640.49
  4. Step 4: Simplify right side
    12,426.57x = 86,444,602.28
  5. Step 5: Solve for x
    x = 86,444,602.28/12,426.57
  6. Step 6: Final answer
    x = 6,956.43

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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.