Home / 18,133.36-27,208.42-8,275.66

Finding the Fourth Proportional to 18,133.36, 27,208.42 and 8,275.66

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Solution

The fourth proportional to 18,133.36, 27,208.42 and 8,275.66 is: 12,417.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,133.36 : 27,208.42 = 8,275.66 : x
  2. Step 2: Convert to fraction form
    18,133.36/27,208.42 = 8,275.66/x
  3. Step 3: Cross multiply
    18,133.36x = 27,208.42 × 8,275.66
  4. Step 4: Simplify right side
    18,133.36x = 225,167,544.35
  5. Step 5: Solve for x
    x = 225,167,544.35/18,133.36
  6. Step 6: Final answer
    x = 12,417.31

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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.