Home / 11,187.09-16,764.80-8,711.01

Finding the Fourth Proportional to 11,187.09, 16,764.80 and 8,711.01

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Solution

The fourth proportional to 11,187.09, 16,764.80 and 8,711.01 is: 13,054.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.09 : 16,764.80 = 8,711.01 : x
  2. Step 2: Convert to fraction form
    11,187.09/16,764.80 = 8,711.01/x
  3. Step 3: Cross multiply
    11,187.09x = 16,764.80 × 8,711.01
  4. Step 4: Simplify right side
    11,187.09x = 146,038,296.89
  5. Step 5: Solve for x
    x = 146,038,296.89/11,187.09
  6. Step 6: Final answer
    x = 13,054.18

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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.