Home / 13,655.26-18,845.67-8,353.60

Finding the Fourth Proportional to 13,655.26, 18,845.67 and 8,353.60

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Solution

The fourth proportional to 13,655.26, 18,845.67 and 8,353.60 is: 11,528.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.26 : 18,845.67 = 8,353.60 : x
  2. Step 2: Convert to fraction form
    13,655.26/18,845.67 = 8,353.60/x
  3. Step 3: Cross multiply
    13,655.26x = 18,845.67 × 8,353.60
  4. Step 4: Simplify right side
    13,655.26x = 157,429,188.91
  5. Step 5: Solve for x
    x = 157,429,188.91/13,655.26
  6. Step 6: Final answer
    x = 11,528.83

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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.