Home / 12,403.88-17,117.52-6,738.64

Finding the Fourth Proportional to 12,403.88, 17,117.52 and 6,738.64

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Solution

The fourth proportional to 12,403.88, 17,117.52 and 6,738.64 is: 9,299.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.88 : 17,117.52 = 6,738.64 : x
  2. Step 2: Convert to fraction form
    12,403.88/17,117.52 = 6,738.64/x
  3. Step 3: Cross multiply
    12,403.88x = 17,117.52 × 6,738.64
  4. Step 4: Simplify right side
    12,403.88x = 115,348,804.97
  5. Step 5: Solve for x
    x = 115,348,804.97/12,403.88
  6. Step 6: Final answer
    x = 9,299.41

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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.