Home / 15,560.82-21,474.48-8,487.54

Finding the Fourth Proportional to 15,560.82, 21,474.48 and 8,487.54

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Solution

The fourth proportional to 15,560.82, 21,474.48 and 8,487.54 is: 11,713.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,560.82 : 21,474.48 = 8,487.54 : x
  2. Step 2: Convert to fraction form
    15,560.82/21,474.48 = 8,487.54/x
  3. Step 3: Cross multiply
    15,560.82x = 21,474.48 × 8,487.54
  4. Step 4: Simplify right side
    15,560.82x = 182,265,507.98
  5. Step 5: Solve for x
    x = 182,265,507.98/15,560.82
  6. Step 6: Final answer
    x = 11,713.10

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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.