Home / 12,125.89-18,150.36-7,956.01

Finding the Fourth Proportional to 12,125.89, 18,150.36 and 7,956.01

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Solution

The fourth proportional to 12,125.89, 18,150.36 and 7,956.01 is: 11,908.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.89 : 18,150.36 = 7,956.01 : x
  2. Step 2: Convert to fraction form
    12,125.89/18,150.36 = 7,956.01/x
  3. Step 3: Cross multiply
    12,125.89x = 18,150.36 × 7,956.01
  4. Step 4: Simplify right side
    12,125.89x = 144,404,445.66
  5. Step 5: Solve for x
    x = 144,404,445.66/12,125.89
  6. Step 6: Final answer
    x = 11,908.77

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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.