Home / 12,956.29-19,431.54-4,636.87

Finding the Fourth Proportional to 12,956.29, 19,431.54 and 4,636.87

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Solution

The fourth proportional to 12,956.29, 19,431.54 and 4,636.87 is: 6,954.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,956.29 : 19,431.54 = 4,636.87 : x
  2. Step 2: Convert to fraction form
    12,956.29/19,431.54 = 4,636.87/x
  3. Step 3: Cross multiply
    12,956.29x = 19,431.54 × 4,636.87
  4. Step 4: Simplify right side
    12,956.29x = 90,101,476.30
  5. Step 5: Solve for x
    x = 90,101,476.30/12,956.29
  6. Step 6: Final answer
    x = 6,954.27

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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.