Home / 11,178.09-16,751.30-8,702.01

Finding the Fourth Proportional to 11,178.09, 16,751.30 and 8,702.01

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Solution

The fourth proportional to 11,178.09, 16,751.30 and 8,702.01 is: 13,040.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.09 : 16,751.30 = 8,702.01 : x
  2. Step 2: Convert to fraction form
    11,178.09/16,751.30 = 8,702.01/x
  3. Step 3: Cross multiply
    11,178.09x = 16,751.30 × 8,702.01
  4. Step 4: Simplify right side
    11,178.09x = 145,769,936.60
  5. Step 5: Solve for x
    x = 145,769,936.60/11,178.09
  6. Step 6: Final answer
    x = 13,040.68

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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.