Home / 18,210.93-27,327.03-7,680.30

Finding the Fourth Proportional to 18,210.93, 27,327.03 and 7,680.30

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Solution

The fourth proportional to 18,210.93, 27,327.03 and 7,680.30 is: 11,524.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,210.93 : 27,327.03 = 7,680.30 : x
  2. Step 2: Convert to fraction form
    18,210.93/27,327.03 = 7,680.30/x
  3. Step 3: Cross multiply
    18,210.93x = 27,327.03 × 7,680.30
  4. Step 4: Simplify right side
    18,210.93x = 209,879,788.51
  5. Step 5: Solve for x
    x = 209,879,788.51/18,210.93
  6. Step 6: Final answer
    x = 11,524.94

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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.