Home / 13,867.87-20,804.60-5,102.59

Finding the Fourth Proportional to 13,867.87, 20,804.60 and 5,102.59

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Solution

The fourth proportional to 13,867.87, 20,804.60 and 5,102.59 is: 7,654.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.87 : 20,804.60 = 5,102.59 : x
  2. Step 2: Convert to fraction form
    13,867.87/20,804.60 = 5,102.59/x
  3. Step 3: Cross multiply
    13,867.87x = 20,804.60 × 5,102.59
  4. Step 4: Simplify right side
    13,867.87x = 106,157,343.91
  5. Step 5: Solve for x
    x = 106,157,343.91/13,867.87
  6. Step 6: Final answer
    x = 7,654.91

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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.