Home / 13,110.55-19,648.22-6,436.86

Finding the Fourth Proportional to 13,110.55, 19,648.22 and 6,436.86

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Solution

The fourth proportional to 13,110.55, 19,648.22 and 6,436.86 is: 9,646.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110.55 : 19,648.22 = 6,436.86 : x
  2. Step 2: Convert to fraction form
    13,110.55/19,648.22 = 6,436.86/x
  3. Step 3: Cross multiply
    13,110.55x = 19,648.22 × 6,436.86
  4. Step 4: Simplify right side
    13,110.55x = 126,472,735.52
  5. Step 5: Solve for x
    x = 126,472,735.52/13,110.55
  6. Step 6: Final answer
    x = 9,646.64

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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.