Home / 15,971.72-23,956.70-4,877.42

Finding the Fourth Proportional to 15,971.72, 23,956.70 and 4,877.42

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Solution

The fourth proportional to 15,971.72, 23,956.70 and 4,877.42 is: 7,315.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,971.72 : 23,956.70 = 4,877.42 : x
  2. Step 2: Convert to fraction form
    15,971.72/23,956.70 = 4,877.42/x
  3. Step 3: Cross multiply
    15,971.72x = 23,956.70 × 4,877.42
  4. Step 4: Simplify right side
    15,971.72x = 116,846,743.54
  5. Step 5: Solve for x
    x = 116,846,743.54/15,971.72
  6. Step 6: Final answer
    x = 7,315.85

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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.