Home / 8,918.10-13,379.45-2,677.86

Finding the Fourth Proportional to 8,918.10, 13,379.45 and 2,677.86

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Solution

The fourth proportional to 8,918.10, 13,379.45 and 2,677.86 is: 4,017.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.10 : 13,379.45 = 2,677.86 : x
  2. Step 2: Convert to fraction form
    8,918.10/13,379.45 = 2,677.86/x
  3. Step 3: Cross multiply
    8,918.10x = 13,379.45 × 2,677.86
  4. Step 4: Simplify right side
    8,918.10x = 35,828,280.59
  5. Step 5: Solve for x
    x = 35,828,280.59/8,918.10
  6. Step 6: Final answer
    x = 4,017.48

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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.