Home / 12,685.88-17,511.18-9,536.60

Finding the Fourth Proportional to 12,685.88, 17,511.18 and 9,536.60

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Solution

The fourth proportional to 12,685.88, 17,511.18 and 9,536.60 is: 13,164.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,685.88 : 17,511.18 = 9,536.60 : x
  2. Step 2: Convert to fraction form
    12,685.88/17,511.18 = 9,536.60/x
  3. Step 3: Cross multiply
    12,685.88x = 17,511.18 × 9,536.60
  4. Step 4: Simplify right side
    12,685.88x = 166,997,119.19
  5. Step 5: Solve for x
    x = 166,997,119.19/12,685.88
  6. Step 6: Final answer
    x = 13,164.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.