Home / 11,209.98-15,469.82-6,430.11

Finding the Fourth Proportional to 11,209.98, 15,469.82 and 6,430.11

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Solution

The fourth proportional to 11,209.98, 15,469.82 and 6,430.11 is: 8,873.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,209.98 : 15,469.82 = 6,430.11 : x
  2. Step 2: Convert to fraction form
    11,209.98/15,469.82 = 6,430.11/x
  3. Step 3: Cross multiply
    11,209.98x = 15,469.82 × 6,430.11
  4. Step 4: Simplify right side
    11,209.98x = 99,472,660.36
  5. Step 5: Solve for x
    x = 99,472,660.36/11,209.98
  6. Step 6: Final answer
    x = 8,873.58

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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.