Home / 12,633.35-17,423.78-11,117.66

Finding the Fourth Proportional to 12,633.35, 17,423.78 and 11,117.66

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Solution

The fourth proportional to 12,633.35, 17,423.78 and 11,117.66 is: 15,333.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,633.35 : 17,423.78 = 11,117.66 : x
  2. Step 2: Convert to fraction form
    12,633.35/17,423.78 = 11,117.66/x
  3. Step 3: Cross multiply
    12,633.35x = 17,423.78 × 11,117.66
  4. Step 4: Simplify right side
    12,633.35x = 193,711,519.25
  5. Step 5: Solve for x
    x = 193,711,519.25/12,633.35
  6. Step 6: Final answer
    x = 15,333.35

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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.