Home / 19,743.36-27,236.55-11,671.65

Finding the Fourth Proportional to 19,743.36, 27,236.55 and 11,671.65

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Solution

The fourth proportional to 19,743.36, 27,236.55 and 11,671.65 is: 16,101.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,743.36 : 27,236.55 = 11,671.65 : x
  2. Step 2: Convert to fraction form
    19,743.36/27,236.55 = 11,671.65/x
  3. Step 3: Cross multiply
    19,743.36x = 27,236.55 × 11,671.65
  4. Step 4: Simplify right side
    19,743.36x = 317,895,478.81
  5. Step 5: Solve for x
    x = 317,895,478.81/19,743.36
  6. Step 6: Final answer
    x = 16,101.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.