Home / 15,278.32-21,055.44-12,250

Finding the Fourth Proportional to 15,278.32, 21,055.44 and 12,250

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Solution

The fourth proportional to 15,278.32, 21,055.44 and 12,250 is: 16,882.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,278.32 : 21,055.44 = 12,250 : x
  2. Step 2: Convert to fraction form
    15,278.32/21,055.44 = 12,250/x
  3. Step 3: Cross multiply
    15,278.32x = 21,055.44 × 12,250
  4. Step 4: Simplify right side
    15,278.32x = 257,929,140.00
  5. Step 5: Solve for x
    x = 257,929,140.00/15,278.32
  6. Step 6: Final answer
    x = 16,882.04

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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.