Home / 15,023.54-20,732.18-9,355.43

Finding the Fourth Proportional to 15,023.54, 20,732.18 and 9,355.43

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Solution

The fourth proportional to 15,023.54, 20,732.18 and 9,355.43 is: 12,910.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,023.54 : 20,732.18 = 9,355.43 : x
  2. Step 2: Convert to fraction form
    15,023.54/20,732.18 = 9,355.43/x
  3. Step 3: Cross multiply
    15,023.54x = 20,732.18 × 9,355.43
  4. Step 4: Simplify right side
    15,023.54x = 193,958,463.79
  5. Step 5: Solve for x
    x = 193,958,463.79/15,023.54
  6. Step 6: Final answer
    x = 12,910.30

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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.