Home / 13,569.64-20,353.48-4,209.41

Finding the Fourth Proportional to 13,569.64, 20,353.48 and 4,209.41

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Solution

The fourth proportional to 13,569.64, 20,353.48 and 4,209.41 is: 6,313.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,569.64 : 20,353.48 = 4,209.41 : x
  2. Step 2: Convert to fraction form
    13,569.64/20,353.48 = 4,209.41/x
  3. Step 3: Cross multiply
    13,569.64x = 20,353.48 × 4,209.41
  4. Step 4: Simplify right side
    13,569.64x = 85,676,197.71
  5. Step 5: Solve for x
    x = 85,676,197.71/13,569.64
  6. Step 6: Final answer
    x = 6,313.82

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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.