Home / 12,848.89-17,731.85-7,183.45

Finding the Fourth Proportional to 12,848.89, 17,731.85 and 7,183.45

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Solution

The fourth proportional to 12,848.89, 17,731.85 and 7,183.45 is: 9,913.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,848.89 : 17,731.85 = 7,183.45 : x
  2. Step 2: Convert to fraction form
    12,848.89/17,731.85 = 7,183.45/x
  3. Step 3: Cross multiply
    12,848.89x = 17,731.85 × 7,183.45
  4. Step 4: Simplify right side
    12,848.89x = 127,375,857.88
  5. Step 5: Solve for x
    x = 127,375,857.88/12,848.89
  6. Step 6: Final answer
    x = 9,913.37

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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.