Home / 8,687.22-13,030.84-2,113.42

Finding the Fourth Proportional to 8,687.22, 13,030.84 and 2,113.42

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Solution

The fourth proportional to 8,687.22, 13,030.84 and 2,113.42 is: 3,170.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.22 : 13,030.84 = 2,113.42 : x
  2. Step 2: Convert to fraction form
    8,687.22/13,030.84 = 2,113.42/x
  3. Step 3: Cross multiply
    8,687.22x = 13,030.84 × 2,113.42
  4. Step 4: Simplify right side
    8,687.22x = 27,539,637.87
  5. Step 5: Solve for x
    x = 27,539,637.87/8,687.22
  6. Step 6: Final answer
    x = 3,170.13

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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.