Home / 18,457.79-27,690.32-6,771.11

Finding the Fourth Proportional to 18,457.79, 27,690.32 and 6,771.11

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Solution

The fourth proportional to 18,457.79, 27,690.32 and 6,771.11 is: 10,158.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,457.79 : 27,690.32 = 6,771.11 : x
  2. Step 2: Convert to fraction form
    18,457.79/27,690.32 = 6,771.11/x
  3. Step 3: Cross multiply
    18,457.79x = 27,690.32 × 6,771.11
  4. Step 4: Simplify right side
    18,457.79x = 187,494,202.66
  5. Step 5: Solve for x
    x = 187,494,202.66/18,457.79
  6. Step 6: Final answer
    x = 10,158.00

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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.