Home / 19,866.66-27,408.22-11,364.25

Finding the Fourth Proportional to 19,866.66, 27,408.22 and 11,364.25

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Solution

The fourth proportional to 19,866.66, 27,408.22 and 11,364.25 is: 15,678.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,866.66 : 27,408.22 = 11,364.25 : x
  2. Step 2: Convert to fraction form
    19,866.66/27,408.22 = 11,364.25/x
  3. Step 3: Cross multiply
    19,866.66x = 27,408.22 × 11,364.25
  4. Step 4: Simplify right side
    19,866.66x = 311,473,727.09
  5. Step 5: Solve for x
    x = 311,473,727.09/19,866.66
  6. Step 6: Final answer
    x = 15,678.21

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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.