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Finding the Fourth Proportional to 13,768.84, 20,627.34 and 6,848.20

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Solution

The fourth proportional to 13,768.84, 20,627.34 and 6,848.20 is: 10,259.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,768.84 : 20,627.34 = 6,848.20 : x
  2. Step 2: Convert to fraction form
    13,768.84/20,627.34 = 6,848.20/x
  3. Step 3: Cross multiply
    13,768.84x = 20,627.34 × 6,848.20
  4. Step 4: Simplify right side
    13,768.84x = 141,260,149.79
  5. Step 5: Solve for x
    x = 141,260,149.79/13,768.84
  6. Step 6: Final answer
    x = 10,259.41

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1.5x scale

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.