Home / 15,731.49-23,611.82-7,945.77

Finding the Fourth Proportional to 15,731.49, 23,611.82 and 7,945.77

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Solution

The fourth proportional to 15,731.49, 23,611.82 and 7,945.77 is: 11,926.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,731.49 : 23,611.82 = 7,945.77 : x
  2. Step 2: Convert to fraction form
    15,731.49/23,611.82 = 7,945.77/x
  3. Step 3: Cross multiply
    15,731.49x = 23,611.82 × 7,945.77
  4. Step 4: Simplify right side
    15,731.49x = 187,614,091.00
  5. Step 5: Solve for x
    x = 187,614,091.00/15,731.49
  6. Step 6: Final answer
    x = 11,926.02

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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.