Home / 12,971.64-19,456.64-6,392

Finding the Fourth Proportional to 12,971.64, 19,456.64 and 6,392

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Solution

The fourth proportional to 12,971.64, 19,456.64 and 6,392 is: 9,587.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,971.64 : 19,456.64 = 6,392 : x
  2. Step 2: Convert to fraction form
    12,971.64/19,456.64 = 6,392/x
  3. Step 3: Cross multiply
    12,971.64x = 19,456.64 × 6,392
  4. Step 4: Simplify right side
    12,971.64x = 124,366,842.88
  5. Step 5: Solve for x
    x = 124,366,842.88/12,971.64
  6. Step 6: Final answer
    x = 9,587.60

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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.