Home / 13,659.06-20,487.69-5,758.20

Finding the Fourth Proportional to 13,659.06, 20,487.69 and 5,758.20

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Solution

The fourth proportional to 13,659.06, 20,487.69 and 5,758.20 is: 8,636.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659.06 : 20,487.69 = 5,758.20 : x
  2. Step 2: Convert to fraction form
    13,659.06/20,487.69 = 5,758.20/x
  3. Step 3: Cross multiply
    13,659.06x = 20,487.69 × 5,758.20
  4. Step 4: Simplify right side
    13,659.06x = 117,972,216.56
  5. Step 5: Solve for x
    x = 117,972,216.56/13,659.06
  6. Step 6: Final answer
    x = 8,636.92

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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.