Home / 12,949.43-19,329.60-11,112.35

Finding the Fourth Proportional to 12,949.43, 19,329.60 and 11,112.35

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Solution

The fourth proportional to 12,949.43, 19,329.60 and 11,112.35 is: 16,587.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949.43 : 19,329.60 = 11,112.35 : x
  2. Step 2: Convert to fraction form
    12,949.43/19,329.60 = 11,112.35/x
  3. Step 3: Cross multiply
    12,949.43x = 19,329.60 × 11,112.35
  4. Step 4: Simplify right side
    12,949.43x = 214,797,279.95
  5. Step 5: Solve for x
    x = 214,797,279.95/12,949.43
  6. Step 6: Final answer
    x = 16,587.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.