Home / 13,134.15-19,719.45-8,223.12

Finding the Fourth Proportional to 13,134.15, 19,719.45 and 8,223.12

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Solution

The fourth proportional to 13,134.15, 19,719.45 and 8,223.12 is: 12,346.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,134.15 : 19,719.45 = 8,223.12 : x
  2. Step 2: Convert to fraction form
    13,134.15/19,719.45 = 8,223.12/x
  3. Step 3: Cross multiply
    13,134.15x = 19,719.45 × 8,223.12
  4. Step 4: Simplify right side
    13,134.15x = 162,155,403.68
  5. Step 5: Solve for x
    x = 162,155,403.68/13,134.15
  6. Step 6: Final answer
    x = 12,346.09

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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.