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Finding the Fourth Proportional to 12,735.84, 19,098.36 and 6,890.88

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Solution

The fourth proportional to 12,735.84, 19,098.36 and 6,890.88 is: 10,333.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,735.84 : 19,098.36 = 6,890.88 : x
  2. Step 2: Convert to fraction form
    12,735.84/19,098.36 = 6,890.88/x
  3. Step 3: Cross multiply
    12,735.84x = 19,098.36 × 6,890.88
  4. Step 4: Simplify right side
    12,735.84x = 131,604,506.96
  5. Step 5: Solve for x
    x = 131,604,506.96/12,735.84
  6. Step 6: Final answer
    x = 10,333.40

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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.