Home / 8,701.69-13,051.89-2,778.34

Finding the Fourth Proportional to 8,701.69, 13,051.89 and 2,778.34

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Solution

The fourth proportional to 8,701.69, 13,051.89 and 2,778.34 is: 4,167.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.69 : 13,051.89 = 2,778.34 : x
  2. Step 2: Convert to fraction form
    8,701.69/13,051.89 = 2,778.34/x
  3. Step 3: Cross multiply
    8,701.69x = 13,051.89 × 2,778.34
  4. Step 4: Simplify right side
    8,701.69x = 36,262,588.06
  5. Step 5: Solve for x
    x = 36,262,588.06/8,701.69
  6. Step 6: Final answer
    x = 4,167.30

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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.