Home / 12,619.53-18,934.76-6,769.31

Finding the Fourth Proportional to 12,619.53, 18,934.76 and 6,769.31

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Solution

The fourth proportional to 12,619.53, 18,934.76 and 6,769.31 is: 10,156.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,619.53 : 18,934.76 = 6,769.31 : x
  2. Step 2: Convert to fraction form
    12,619.53/18,934.76 = 6,769.31/x
  3. Step 3: Cross multiply
    12,619.53x = 18,934.76 × 6,769.31
  4. Step 4: Simplify right side
    12,619.53x = 128,175,131.70
  5. Step 5: Solve for x
    x = 128,175,131.70/12,619.53
  6. Step 6: Final answer
    x = 10,156.89

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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.