Home / 18,210.18-27,325.89-7,679.56

Finding the Fourth Proportional to 18,210.18, 27,325.89 and 7,679.56

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Solution

The fourth proportional to 18,210.18, 27,325.89 and 7,679.56 is: 11,523.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,210.18 : 27,325.89 = 7,679.56 : x
  2. Step 2: Convert to fraction form
    18,210.18/27,325.89 = 7,679.56/x
  3. Step 3: Cross multiply
    18,210.18x = 27,325.89 × 7,679.56
  4. Step 4: Simplify right side
    18,210.18x = 209,850,811.81
  5. Step 5: Solve for x
    x = 209,850,811.81/18,210.18
  6. Step 6: Final answer
    x = 11,523.82

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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.