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Finding the Fourth Proportional to 13,703.16, 18,910.73 and 7,735.39

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Solution

The fourth proportional to 13,703.16, 18,910.73 and 7,735.39 is: 10,675.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,703.16 : 18,910.73 = 7,735.39 : x
  2. Step 2: Convert to fraction form
    13,703.16/18,910.73 = 7,735.39/x
  3. Step 3: Cross multiply
    13,703.16x = 18,910.73 × 7,735.39
  4. Step 4: Simplify right side
    13,703.16x = 146,281,871.73
  5. Step 5: Solve for x
    x = 146,281,871.73/13,703.16
  6. Step 6: Final answer
    x = 10,675.05

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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.