Home / 12,619.56-18,934.81-6,769.34

Finding the Fourth Proportional to 12,619.56, 18,934.81 and 6,769.34

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Solution

The fourth proportional to 12,619.56, 18,934.81 and 6,769.34 is: 10,156.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,619.56 : 18,934.81 = 6,769.34 : x
  2. Step 2: Convert to fraction form
    12,619.56/18,934.81 = 6,769.34/x
  3. Step 3: Cross multiply
    12,619.56x = 18,934.81 × 6,769.34
  4. Step 4: Simplify right side
    12,619.56x = 128,176,119.39
  5. Step 5: Solve for x
    x = 128,176,119.39/12,619.56
  6. Step 6: Final answer
    x = 10,156.94

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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.