Home / 13,567.89-20,353.76-4,208.68

Finding the Fourth Proportional to 13,567.89, 20,353.76 and 4,208.68

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Solution

The fourth proportional to 13,567.89, 20,353.76 and 4,208.68 is: 6,313.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,567.89 : 20,353.76 = 4,208.68 : x
  2. Step 2: Convert to fraction form
    13,567.89/20,353.76 = 4,208.68/x
  3. Step 3: Cross multiply
    13,567.89x = 20,353.76 × 4,208.68
  4. Step 4: Simplify right side
    13,567.89x = 85,662,422.27
  5. Step 5: Solve for x
    x = 85,662,422.27/13,567.89
  6. Step 6: Final answer
    x = 6,313.61

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1.5x scale

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.