Home / 12,971.56-19,460.18-4,207.36

Finding the Fourth Proportional to 12,971.56, 19,460.18 and 4,207.36

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Solution

The fourth proportional to 12,971.56, 19,460.18 and 4,207.36 is: 6,311.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,971.56 : 19,460.18 = 4,207.36 : x
  2. Step 2: Convert to fraction form
    12,971.56/19,460.18 = 4,207.36/x
  3. Step 3: Cross multiply
    12,971.56x = 19,460.18 × 4,207.36
  4. Step 4: Simplify right side
    12,971.56x = 81,875,982.92
  5. Step 5: Solve for x
    x = 81,875,982.92/12,971.56
  6. Step 6: Final answer
    x = 6,311.96

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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.