Home / 13,108.82-19,658.60-4,223.79

Finding the Fourth Proportional to 13,108.82, 19,658.60 and 4,223.79

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Solution

The fourth proportional to 13,108.82, 19,658.60 and 4,223.79 is: 6,334.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108.82 : 19,658.60 = 4,223.79 : x
  2. Step 2: Convert to fraction form
    13,108.82/19,658.60 = 4,223.79/x
  3. Step 3: Cross multiply
    13,108.82x = 19,658.60 × 4,223.79
  4. Step 4: Simplify right side
    13,108.82x = 83,033,826.12
  5. Step 5: Solve for x
    x = 83,033,826.12/13,108.82
  6. Step 6: Final answer
    x = 6,334.20

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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.