Home / 12,752.64-19,130.40-3,985.92

Finding the Fourth Proportional to 12,752.64, 19,130.40 and 3,985.92

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Solution

The fourth proportional to 12,752.64, 19,130.40 and 3,985.92 is: 5,979.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,752.64 : 19,130.40 = 3,985.92 : x
  2. Step 2: Convert to fraction form
    12,752.64/19,130.40 = 3,985.92/x
  3. Step 3: Cross multiply
    12,752.64x = 19,130.40 × 3,985.92
  4. Step 4: Simplify right side
    12,752.64x = 76,252,243.97
  5. Step 5: Solve for x
    x = 76,252,243.97/12,752.64
  6. Step 6: Final answer
    x = 5,979.33

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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.