Home / 12,771.36-19,159.47-4,003.92

Finding the Fourth Proportional to 12,771.36, 19,159.47 and 4,003.92

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Solution

The fourth proportional to 12,771.36, 19,159.47 and 4,003.92 is: 6,006.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771.36 : 19,159.47 = 4,003.92 : x
  2. Step 2: Convert to fraction form
    12,771.36/19,159.47 = 4,003.92/x
  3. Step 3: Cross multiply
    12,771.36x = 19,159.47 × 4,003.92
  4. Step 4: Simplify right side
    12,771.36x = 76,712,985.12
  5. Step 5: Solve for x
    x = 76,712,985.12/12,771.36
  6. Step 6: Final answer
    x = 6,006.64

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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.