Home / 14,912.12-20,578.73-8,197.70

Finding the Fourth Proportional to 14,912.12, 20,578.73 and 8,197.70

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Solution

The fourth proportional to 14,912.12, 20,578.73 and 8,197.70 is: 11,312.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,912.12 : 20,578.73 = 8,197.70 : x
  2. Step 2: Convert to fraction form
    14,912.12/20,578.73 = 8,197.70/x
  3. Step 3: Cross multiply
    14,912.12x = 20,578.73 × 8,197.70
  4. Step 4: Simplify right side
    14,912.12x = 168,698,111.04
  5. Step 5: Solve for x
    x = 168,698,111.04/14,912.12
  6. Step 6: Final answer
    x = 11,312.82

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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.