Home / 13,389.89-20,086.65-4,625.48

Finding the Fourth Proportional to 13,389.89, 20,086.65 and 4,625.48

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Solution

The fourth proportional to 13,389.89, 20,086.65 and 4,625.48 is: 6,938.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389.89 : 20,086.65 = 4,625.48 : x
  2. Step 2: Convert to fraction form
    13,389.89/20,086.65 = 4,625.48/x
  3. Step 3: Cross multiply
    13,389.89x = 20,086.65 × 4,625.48
  4. Step 4: Simplify right side
    13,389.89x = 92,910,397.84
  5. Step 5: Solve for x
    x = 92,910,397.84/13,389.89
  6. Step 6: Final answer
    x = 6,938.85

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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.