Home / 13,721.59-20,582.38-4,956.51

Finding the Fourth Proportional to 13,721.59, 20,582.38 and 4,956.51

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Solution

The fourth proportional to 13,721.59, 20,582.38 and 4,956.51 is: 7,434.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721.59 : 20,582.38 = 4,956.51 : x
  2. Step 2: Convert to fraction form
    13,721.59/20,582.38 = 4,956.51/x
  3. Step 3: Cross multiply
    13,721.59x = 20,582.38 × 4,956.51
  4. Step 4: Simplify right side
    13,721.59x = 102,016,772.29
  5. Step 5: Solve for x
    x = 102,016,772.29/13,721.59
  6. Step 6: Final answer
    x = 7,434.76

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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.