Home / 15,083.50-20,815.23-8,794.66

Finding the Fourth Proportional to 15,083.50, 20,815.23 and 8,794.66

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Solution

The fourth proportional to 15,083.50, 20,815.23 and 8,794.66 is: 12,136.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,083.50 : 20,815.23 = 8,794.66 : x
  2. Step 2: Convert to fraction form
    15,083.50/20,815.23 = 8,794.66/x
  3. Step 3: Cross multiply
    15,083.50x = 20,815.23 × 8,794.66
  4. Step 4: Simplify right side
    15,083.50x = 183,062,870.67
  5. Step 5: Solve for x
    x = 183,062,870.67/15,083.50
  6. Step 6: Final answer
    x = 12,136.63

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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.