Home / 13,659.08-20,485.38-3,798.68

Finding the Fourth Proportional to 13,659.08, 20,485.38 and 3,798.68

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Solution

The fourth proportional to 13,659.08, 20,485.38 and 3,798.68 is: 5,697.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659.08 : 20,485.38 = 3,798.68 : x
  2. Step 2: Convert to fraction form
    13,659.08/20,485.38 = 3,798.68/x
  3. Step 3: Cross multiply
    13,659.08x = 20,485.38 × 3,798.68
  4. Step 4: Simplify right side
    13,659.08x = 77,817,403.30
  5. Step 5: Solve for x
    x = 77,817,403.30/13,659.08
  6. Step 6: Final answer
    x = 5,697.12

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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.