Home / 13,218.32-19,826.91-4,453.20

Finding the Fourth Proportional to 13,218.32, 19,826.91 and 4,453.20

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Solution

The fourth proportional to 13,218.32, 19,826.91 and 4,453.20 is: 6,679.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.32 : 19,826.91 = 4,453.20 : x
  2. Step 2: Convert to fraction form
    13,218.32/19,826.91 = 4,453.20/x
  3. Step 3: Cross multiply
    13,218.32x = 19,826.91 × 4,453.20
  4. Step 4: Simplify right side
    13,218.32x = 88,293,195.61
  5. Step 5: Solve for x
    x = 88,293,195.61/13,218.32
  6. Step 6: Final answer
    x = 6,679.61

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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.