Home / 15,731.20-23,577.36-7,935.76

Finding the Fourth Proportional to 15,731.20, 23,577.36 and 7,935.76

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Solution

The fourth proportional to 15,731.20, 23,577.36 and 7,935.76 is: 11,893.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,731.20 : 23,577.36 = 7,935.76 : x
  2. Step 2: Convert to fraction form
    15,731.20/23,577.36 = 7,935.76/x
  3. Step 3: Cross multiply
    15,731.20x = 23,577.36 × 7,935.76
  4. Step 4: Simplify right side
    15,731.20x = 187,104,270.39
  5. Step 5: Solve for x
    x = 187,104,270.39/15,731.20
  6. Step 6: Final answer
    x = 11,893.83

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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.