Home / 8,328.33-12,488.25-2,779.68

Finding the Fourth Proportional to 8,328.33, 12,488.25 and 2,779.68

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Solution

The fourth proportional to 8,328.33, 12,488.25 and 2,779.68 is: 4,168.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.33 : 12,488.25 = 2,779.68 : x
  2. Step 2: Convert to fraction form
    8,328.33/12,488.25 = 2,779.68/x
  3. Step 3: Cross multiply
    8,328.33x = 12,488.25 × 2,779.68
  4. Step 4: Simplify right side
    8,328.33x = 34,713,338.76
  5. Step 5: Solve for x
    x = 34,713,338.76/8,328.33
  6. Step 6: Final answer
    x = 4,168.10

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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.