Home / 12,089.88-16,683.66-6,712.20

Finding the Fourth Proportional to 12,089.88, 16,683.66 and 6,712.20

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Solution

The fourth proportional to 12,089.88, 16,683.66 and 6,712.20 is: 9,262.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089.88 : 16,683.66 = 6,712.20 : x
  2. Step 2: Convert to fraction form
    12,089.88/16,683.66 = 6,712.20/x
  3. Step 3: Cross multiply
    12,089.88x = 16,683.66 × 6,712.20
  4. Step 4: Simplify right side
    12,089.88x = 111,984,062.65
  5. Step 5: Solve for x
    x = 111,984,062.65/12,089.88
  6. Step 6: Final answer
    x = 9,262.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.