Home / 16,766.72-23,137.44-9,315.20

Finding the Fourth Proportional to 16,766.72, 23,137.44 and 9,315.20

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Solution

The fourth proportional to 16,766.72, 23,137.44 and 9,315.20 is: 12,854.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,766.72 : 23,137.44 = 9,315.20 : x
  2. Step 2: Convert to fraction form
    16,766.72/23,137.44 = 9,315.20/x
  3. Step 3: Cross multiply
    16,766.72x = 23,137.44 × 9,315.20
  4. Step 4: Simplify right side
    16,766.72x = 215,529,881.09
  5. Step 5: Solve for x
    x = 215,529,881.09/16,766.72
  6. Step 6: Final answer
    x = 12,854.62

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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.