Home / 8,779.78-13,170.75-3,584.98

Finding the Fourth Proportional to 8,779.78, 13,170.75 and 3,584.98

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Solution

The fourth proportional to 8,779.78, 13,170.75 and 3,584.98 is: 5,377.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.78 : 13,170.75 = 3,584.98 : x
  2. Step 2: Convert to fraction form
    8,779.78/13,170.75 = 3,584.98/x
  3. Step 3: Cross multiply
    8,779.78x = 13,170.75 × 3,584.98
  4. Step 4: Simplify right side
    8,779.78x = 47,216,875.34
  5. Step 5: Solve for x
    x = 47,216,875.34/8,779.78
  6. Step 6: Final answer
    x = 5,377.91

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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.