Home / 14,910.33-20,578.20-9,620.53

Finding the Fourth Proportional to 14,910.33, 20,578.20 and 9,620.53

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Solution

The fourth proportional to 14,910.33, 20,578.20 and 9,620.53 is: 13,277.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,910.33 : 20,578.20 = 9,620.53 : x
  2. Step 2: Convert to fraction form
    14,910.33/20,578.20 = 9,620.53/x
  3. Step 3: Cross multiply
    14,910.33x = 20,578.20 × 9,620.53
  4. Step 4: Simplify right side
    14,910.33x = 197,973,142.34
  5. Step 5: Solve for x
    x = 197,973,142.34/14,910.33
  6. Step 6: Final answer
    x = 13,277.59

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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.