Home / 18,236.91-25,167.38-10,688.07

Finding the Fourth Proportional to 18,236.91, 25,167.38 and 10,688.07

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Solution

The fourth proportional to 18,236.91, 25,167.38 and 10,688.07 is: 14,749.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,236.91 : 25,167.38 = 10,688.07 : x
  2. Step 2: Convert to fraction form
    18,236.91/25,167.38 = 10,688.07/x
  3. Step 3: Cross multiply
    18,236.91x = 25,167.38 × 10,688.07
  4. Step 4: Simplify right side
    18,236.91x = 268,990,665.72
  5. Step 5: Solve for x
    x = 268,990,665.72/18,236.91
  6. Step 6: Final answer
    x = 14,749.79

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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.