Home / 13,115.47-19,668.65-3,752.96

Finding the Fourth Proportional to 13,115.47, 19,668.65 and 3,752.96

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Solution

The fourth proportional to 13,115.47, 19,668.65 and 3,752.96 is: 5,628.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.47 : 19,668.65 = 3,752.96 : x
  2. Step 2: Convert to fraction form
    13,115.47/19,668.65 = 3,752.96/x
  3. Step 3: Cross multiply
    13,115.47x = 19,668.65 × 3,752.96
  4. Step 4: Simplify right side
    13,115.47x = 73,815,637.94
  5. Step 5: Solve for x
    x = 73,815,637.94/13,115.47
  6. Step 6: Final answer
    x = 5,628.14

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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.