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Finding the Fourth Proportional to 8,012.65, 12,018.98 and 2,089.53

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Solution

The fourth proportional to 8,012.65, 12,018.98 and 2,089.53 is: 3,134.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,012.65 : 12,018.98 = 2,089.53 : x
  2. Step 2: Convert to fraction form
    8,012.65/12,018.98 = 2,089.53/x
  3. Step 3: Cross multiply
    8,012.65x = 12,018.98 × 2,089.53
  4. Step 4: Simplify right side
    8,012.65x = 25,113,989.23
  5. Step 5: Solve for x
    x = 25,113,989.23/8,012.65
  6. Step 6: Final answer
    x = 3,134.29

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1.5x scale

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.