Home / 13,088.25-19,613.21-8,142.84

Finding the Fourth Proportional to 13,088.25, 19,613.21 and 8,142.84

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Solution

The fourth proportional to 13,088.25, 19,613.21 and 8,142.84 is: 12,202.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,088.25 : 19,613.21 = 8,142.84 : x
  2. Step 2: Convert to fraction form
    13,088.25/19,613.21 = 8,142.84/x
  3. Step 3: Cross multiply
    13,088.25x = 19,613.21 × 8,142.84
  4. Step 4: Simplify right side
    13,088.25x = 159,707,190.20
  5. Step 5: Solve for x
    x = 159,707,190.20/13,088.25
  6. Step 6: Final answer
    x = 12,202.33

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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.