Home / 13,176.97-18,190.15-8,403.32

Finding the Fourth Proportional to 13,176.97, 18,190.15 and 8,403.32

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Solution

The fourth proportional to 13,176.97, 18,190.15 and 8,403.32 is: 11,600.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.97 : 18,190.15 = 8,403.32 : x
  2. Step 2: Convert to fraction form
    13,176.97/18,190.15 = 8,403.32/x
  3. Step 3: Cross multiply
    13,176.97x = 18,190.15 × 8,403.32
  4. Step 4: Simplify right side
    13,176.97x = 152,857,675.77
  5. Step 5: Solve for x
    x = 152,857,675.77/13,176.97
  6. Step 6: Final answer
    x = 11,600.37

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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.