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Finding the Fourth Proportional to 13,179.00, 18,187.03 and 7,210.62

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Solution

The fourth proportional to 13,179.00, 18,187.03 and 7,210.62 is: 9,950.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179.00 : 18,187.03 = 7,210.62 : x
  2. Step 2: Convert to fraction form
    13,179.00/18,187.03 = 7,210.62/x
  3. Step 3: Cross multiply
    13,179.00x = 18,187.03 × 7,210.62
  4. Step 4: Simplify right side
    13,179.00x = 131,139,771.27
  5. Step 5: Solve for x
    x = 131,139,771.27/13,179.00
  6. Step 6: Final answer
    x = 9,950.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.