Home / 13,821.47-20,735.29-5,501.86

Finding the Fourth Proportional to 13,821.47, 20,735.29 and 5,501.86

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Solution

The fourth proportional to 13,821.47, 20,735.29 and 5,501.86 is: 8,254.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.47 : 20,735.29 = 5,501.86 : x
  2. Step 2: Convert to fraction form
    13,821.47/20,735.29 = 5,501.86/x
  3. Step 3: Cross multiply
    13,821.47x = 20,735.29 × 5,501.86
  4. Step 4: Simplify right side
    13,821.47x = 114,082,558.96
  5. Step 5: Solve for x
    x = 114,082,558.96/13,821.47
  6. Step 6: Final answer
    x = 8,254.01

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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.