Home / 18,670.13-28,003.66-6,186.07

Finding the Fourth Proportional to 18,670.13, 28,003.66 and 6,186.07

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Solution

The fourth proportional to 18,670.13, 28,003.66 and 6,186.07 is: 9,278.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670.13 : 28,003.66 = 6,186.07 : x
  2. Step 2: Convert to fraction form
    18,670.13/28,003.66 = 6,186.07/x
  3. Step 3: Cross multiply
    18,670.13x = 28,003.66 × 6,186.07
  4. Step 4: Simplify right side
    18,670.13x = 173,232,620.56
  5. Step 5: Solve for x
    x = 173,232,620.56/18,670.13
  6. Step 6: Final answer
    x = 9,278.60

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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.