Home / 13,719.57-20,575.29-5,821.98

Finding the Fourth Proportional to 13,719.57, 20,575.29 and 5,821.98

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Solution

The fourth proportional to 13,719.57, 20,575.29 and 5,821.98 is: 8,731.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.57 : 20,575.29 = 5,821.98 : x
  2. Step 2: Convert to fraction form
    13,719.57/20,575.29 = 5,821.98/x
  3. Step 3: Cross multiply
    13,719.57x = 20,575.29 × 5,821.98
  4. Step 4: Simplify right side
    13,719.57x = 119,788,926.87
  5. Step 5: Solve for x
    x = 119,788,926.87/13,719.57
  6. Step 6: Final answer
    x = 8,731.24

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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.