Home / 14,805.90-20,425.68-9,425.48

Finding the Fourth Proportional to 14,805.90, 20,425.68 and 9,425.48

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Solution

The fourth proportional to 14,805.90, 20,425.68 and 9,425.48 is: 13,003.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,805.90 : 20,425.68 = 9,425.48 : x
  2. Step 2: Convert to fraction form
    14,805.90/20,425.68 = 9,425.48/x
  3. Step 3: Cross multiply
    14,805.90x = 20,425.68 × 9,425.48
  4. Step 4: Simplify right side
    14,805.90x = 192,521,736.20
  5. Step 5: Solve for x
    x = 192,521,736.20/14,805.90
  6. Step 6: Final answer
    x = 13,003.04

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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.