Home / 13,860.79-20,794.45-4,500.78

Finding the Fourth Proportional to 13,860.79, 20,794.45 and 4,500.78

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Solution

The fourth proportional to 13,860.79, 20,794.45 and 4,500.78 is: 6,752.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.79 : 20,794.45 = 4,500.78 : x
  2. Step 2: Convert to fraction form
    13,860.79/20,794.45 = 4,500.78/x
  3. Step 3: Cross multiply
    13,860.79x = 20,794.45 × 4,500.78
  4. Step 4: Simplify right side
    13,860.79x = 93,591,244.67
  5. Step 5: Solve for x
    x = 93,591,244.67/13,860.79
  6. Step 6: Final answer
    x = 6,752.23

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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.