Home / 12,905.12-17,832.48-10,382.24

Finding the Fourth Proportional to 12,905.12, 17,832.48 and 10,382.24

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Solution

The fourth proportional to 12,905.12, 17,832.48 and 10,382.24 is: 14,346.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,905.12 : 17,832.48 = 10,382.24 : x
  2. Step 2: Convert to fraction form
    12,905.12/17,832.48 = 10,382.24/x
  3. Step 3: Cross multiply
    12,905.12x = 17,832.48 × 10,382.24
  4. Step 4: Simplify right side
    12,905.12x = 185,141,087.16
  5. Step 5: Solve for x
    x = 185,141,087.16/12,905.12
  6. Step 6: Final answer
    x = 14,346.33

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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.