Home / 13,873.20-20,817.36-5,106.84

Finding the Fourth Proportional to 13,873.20, 20,817.36 and 5,106.84

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Solution

The fourth proportional to 13,873.20, 20,817.36 and 5,106.84 is: 7,663.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,873.20 : 20,817.36 = 5,106.84 : x
  2. Step 2: Convert to fraction form
    13,873.20/20,817.36 = 5,106.84/x
  3. Step 3: Cross multiply
    13,873.20x = 20,817.36 × 5,106.84
  4. Step 4: Simplify right side
    13,873.20x = 106,310,926.74
  5. Step 5: Solve for x
    x = 106,310,926.74/13,873.20
  6. Step 6: Final answer
    x = 7,663.04

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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.