Home / 8,113.89-12,172.03-2,565.98

Finding the Fourth Proportional to 8,113.89, 12,172.03 and 2,565.98

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Solution

The fourth proportional to 8,113.89, 12,172.03 and 2,565.98 is: 3,849.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,113.89 : 12,172.03 = 2,565.98 : x
  2. Step 2: Convert to fraction form
    8,113.89/12,172.03 = 2,565.98/x
  3. Step 3: Cross multiply
    8,113.89x = 12,172.03 × 2,565.98
  4. Step 4: Simplify right side
    8,113.89x = 31,233,118.26
  5. Step 5: Solve for x
    x = 31,233,118.26/8,113.89
  6. Step 6: Final answer
    x = 3,849.34

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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.