Home / 8,687.42-13,030.49-2,764.07

Finding the Fourth Proportional to 8,687.42, 13,030.49 and 2,764.07

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Solution

The fourth proportional to 8,687.42, 13,030.49 and 2,764.07 is: 4,145.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.42 : 13,030.49 = 2,764.07 : x
  2. Step 2: Convert to fraction form
    8,687.42/13,030.49 = 2,764.07/x
  3. Step 3: Cross multiply
    8,687.42x = 13,030.49 × 2,764.07
  4. Step 4: Simplify right side
    8,687.42x = 36,017,172.67
  5. Step 5: Solve for x
    x = 36,017,172.67/8,687.42
  6. Step 6: Final answer
    x = 4,145.90

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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.