Home / 13,656.22-20,487.25-7,735.91

Finding the Fourth Proportional to 13,656.22, 20,487.25 and 7,735.91

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Solution

The fourth proportional to 13,656.22, 20,487.25 and 7,735.91 is: 11,605.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656.22 : 20,487.25 = 7,735.91 : x
  2. Step 2: Convert to fraction form
    13,656.22/20,487.25 = 7,735.91/x
  3. Step 3: Cross multiply
    13,656.22x = 20,487.25 × 7,735.91
  4. Step 4: Simplify right side
    13,656.22x = 158,487,451.14
  5. Step 5: Solve for x
    x = 158,487,451.14/13,656.22
  6. Step 6: Final answer
    x = 11,605.51

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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.