Home / 16,129.58-22,260.12-8,960.16

Finding the Fourth Proportional to 16,129.58, 22,260.12 and 8,960.16

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Solution

The fourth proportional to 16,129.58, 22,260.12 and 8,960.16 is: 12,365.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,129.58 : 22,260.12 = 8,960.16 : x
  2. Step 2: Convert to fraction form
    16,129.58/22,260.12 = 8,960.16/x
  3. Step 3: Cross multiply
    16,129.58x = 22,260.12 × 8,960.16
  4. Step 4: Simplify right side
    16,129.58x = 199,454,236.82
  5. Step 5: Solve for x
    x = 199,454,236.82/16,129.58
  6. Step 6: Final answer
    x = 12,365.74

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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.