Home / 14,108.88-19,469.48-8,140.20

Finding the Fourth Proportional to 14,108.88, 19,469.48 and 8,140.20

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Solution

The fourth proportional to 14,108.88, 19,469.48 and 8,140.20 is: 11,233.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,108.88 : 19,469.48 = 8,140.20 : x
  2. Step 2: Convert to fraction form
    14,108.88/19,469.48 = 8,140.20/x
  3. Step 3: Cross multiply
    14,108.88x = 19,469.48 × 8,140.20
  4. Step 4: Simplify right side
    14,108.88x = 158,485,461.10
  5. Step 5: Solve for x
    x = 158,485,461.10/14,108.88
  6. Step 6: Final answer
    x = 11,233.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.