Home / 14,912.15-20,578.35-8,197.79

Finding the Fourth Proportional to 14,912.15, 20,578.35 and 8,197.79

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Solution

The fourth proportional to 14,912.15, 20,578.35 and 8,197.79 is: 11,312.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,912.15 : 20,578.35 = 8,197.79 : x
  2. Step 2: Convert to fraction form
    14,912.15/20,578.35 = 8,197.79/x
  3. Step 3: Cross multiply
    14,912.15x = 20,578.35 × 8,197.79
  4. Step 4: Simplify right side
    14,912.15x = 168,696,888.95
  5. Step 5: Solve for x
    x = 168,696,888.95/14,912.15
  6. Step 6: Final answer
    x = 11,312.72

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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.