Home / 13,210.34-19,821.96-5,813.88

Finding the Fourth Proportional to 13,210.34, 19,821.96 and 5,813.88

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Solution

The fourth proportional to 13,210.34, 19,821.96 and 5,813.88 is: 8,723.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210.34 : 19,821.96 = 5,813.88 : x
  2. Step 2: Convert to fraction form
    13,210.34/19,821.96 = 5,813.88/x
  3. Step 3: Cross multiply
    13,210.34x = 19,821.96 × 5,813.88
  4. Step 4: Simplify right side
    13,210.34x = 115,242,496.80
  5. Step 5: Solve for x
    x = 115,242,496.80/13,210.34
  6. Step 6: Final answer
    x = 8,723.66

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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.