Home / 18,278.29-25,222.83-10,620.88

Finding the Fourth Proportional to 18,278.29, 25,222.83 and 10,620.88

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Solution

The fourth proportional to 18,278.29, 25,222.83 and 10,620.88 is: 14,656.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.29 : 25,222.83 = 10,620.88 : x
  2. Step 2: Convert to fraction form
    18,278.29/25,222.83 = 10,620.88/x
  3. Step 3: Cross multiply
    18,278.29x = 25,222.83 × 10,620.88
  4. Step 4: Simplify right side
    18,278.29x = 267,888,749.43
  5. Step 5: Solve for x
    x = 267,888,749.43/18,278.29
  6. Step 6: Final answer
    x = 14,656.12

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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.