Home / 13,782.82-19,025.70-9,770.62

Finding the Fourth Proportional to 13,782.82, 19,025.70 and 9,770.62

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Solution

The fourth proportional to 13,782.82, 19,025.70 and 9,770.62 is: 13,487.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,782.82 : 19,025.70 = 9,770.62 : x
  2. Step 2: Convert to fraction form
    13,782.82/19,025.70 = 9,770.62/x
  3. Step 3: Cross multiply
    13,782.82x = 19,025.70 × 9,770.62
  4. Step 4: Simplify right side
    13,782.82x = 185,892,740.95
  5. Step 5: Solve for x
    x = 185,892,740.95/13,782.82
  6. Step 6: Final answer
    x = 13,487.28

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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.