Home / 18,360.32-25,323.12-12,382.48

Finding the Fourth Proportional to 18,360.32, 25,323.12 and 12,382.48

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Solution

The fourth proportional to 18,360.32, 25,323.12 and 12,382.48 is: 17,078.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,360.32 : 25,323.12 = 12,382.48 : x
  2. Step 2: Convert to fraction form
    18,360.32/25,323.12 = 12,382.48/x
  3. Step 3: Cross multiply
    18,360.32x = 25,323.12 × 12,382.48
  4. Step 4: Simplify right side
    18,360.32x = 313,563,026.94
  5. Step 5: Solve for x
    x = 313,563,026.94/18,360.32
  6. Step 6: Final answer
    x = 17,078.30

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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.