Home / 13,740.90-20,612.99-4,854.39

Finding the Fourth Proportional to 13,740.90, 20,612.99 and 4,854.39

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Solution

The fourth proportional to 13,740.90, 20,612.99 and 4,854.39 is: 7,282.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,740.90 : 20,612.99 = 4,854.39 : x
  2. Step 2: Convert to fraction form
    13,740.90/20,612.99 = 4,854.39/x
  3. Step 3: Cross multiply
    13,740.90x = 20,612.99 × 4,854.39
  4. Step 4: Simplify right side
    13,740.90x = 100,063,504.66
  5. Step 5: Solve for x
    x = 100,063,504.66/13,740.90
  6. Step 6: Final answer
    x = 7,282.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.