Home / 13,020.58-19,530.06-5,619.84

Finding the Fourth Proportional to 13,020.58, 19,530.06 and 5,619.84

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Solution

The fourth proportional to 13,020.58, 19,530.06 and 5,619.84 is: 8,429.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.58 : 19,530.06 = 5,619.84 : x
  2. Step 2: Convert to fraction form
    13,020.58/19,530.06 = 5,619.84/x
  3. Step 3: Cross multiply
    13,020.58x = 19,530.06 × 5,619.84
  4. Step 4: Simplify right side
    13,020.58x = 109,755,812.39
  5. Step 5: Solve for x
    x = 109,755,812.39/13,020.58
  6. Step 6: Final answer
    x = 8,429.41

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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.