Home / 11,102.60-16,625.10-8,779.40

Finding the Fourth Proportional to 11,102.60, 16,625.10 and 8,779.40

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Solution

The fourth proportional to 11,102.60, 16,625.10 and 8,779.40 is: 13,146.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,102.60 : 16,625.10 = 8,779.40 : x
  2. Step 2: Convert to fraction form
    11,102.60/16,625.10 = 8,779.40/x
  3. Step 3: Cross multiply
    11,102.60x = 16,625.10 × 8,779.40
  4. Step 4: Simplify right side
    11,102.60x = 145,958,402.94
  5. Step 5: Solve for x
    x = 145,958,402.94/11,102.60
  6. Step 6: Final answer
    x = 13,146.33

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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.