Home / 18,786.51-28,176.62-6,305.13

Finding the Fourth Proportional to 18,786.51, 28,176.62 and 6,305.13

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Solution

The fourth proportional to 18,786.51, 28,176.62 and 6,305.13 is: 9,456.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.51 : 28,176.62 = 6,305.13 : x
  2. Step 2: Convert to fraction form
    18,786.51/28,176.62 = 6,305.13/x
  3. Step 3: Cross multiply
    18,786.51x = 28,176.62 × 6,305.13
  4. Step 4: Simplify right side
    18,786.51x = 177,657,220.53
  5. Step 5: Solve for x
    x = 177,657,220.53/18,786.51
  6. Step 6: Final answer
    x = 9,456.64

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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.