Home / 12,128.52-16,736.14-6,824.22

Finding the Fourth Proportional to 12,128.52, 16,736.14 and 6,824.22

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Solution

The fourth proportional to 12,128.52, 16,736.14 and 6,824.22 is: 9,416.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128.52 : 16,736.14 = 6,824.22 : x
  2. Step 2: Convert to fraction form
    12,128.52/16,736.14 = 6,824.22/x
  3. Step 3: Cross multiply
    12,128.52x = 16,736.14 × 6,824.22
  4. Step 4: Simplify right side
    12,128.52x = 114,211,101.31
  5. Step 5: Solve for x
    x = 114,211,101.31/12,128.52
  6. Step 6: Final answer
    x = 9,416.74

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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.