Home / 13,569.03-20,355.45-4,209.81

Finding the Fourth Proportional to 13,569.03, 20,355.45 and 4,209.81

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Solution

The fourth proportional to 13,569.03, 20,355.45 and 4,209.81 is: 6,315.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,569.03 : 20,355.45 = 4,209.81 : x
  2. Step 2: Convert to fraction form
    13,569.03/20,355.45 = 4,209.81/x
  3. Step 3: Cross multiply
    13,569.03x = 20,355.45 × 4,209.81
  4. Step 4: Simplify right side
    13,569.03x = 85,692,576.96
  5. Step 5: Solve for x
    x = 85,692,576.96/13,569.03
  6. Step 6: Final answer
    x = 6,315.31

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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.