Home / 13,861.02-20,799.74-5,102.09

Finding the Fourth Proportional to 13,861.02, 20,799.74 and 5,102.09

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Solution

The fourth proportional to 13,861.02, 20,799.74 and 5,102.09 is: 7,656.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,861.02 : 20,799.74 = 5,102.09 : x
  2. Step 2: Convert to fraction form
    13,861.02/20,799.74 = 5,102.09/x
  3. Step 3: Cross multiply
    13,861.02x = 20,799.74 × 5,102.09
  4. Step 4: Simplify right side
    13,861.02x = 106,122,015.95
  5. Step 5: Solve for x
    x = 106,122,015.95/13,861.02
  6. Step 6: Final answer
    x = 7,656.15

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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.