Home / 18,313.91-25,273.21-9,930.41

Finding the Fourth Proportional to 18,313.91, 25,273.21 and 9,930.41

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Solution

The fourth proportional to 18,313.91, 25,273.21 and 9,930.41 is: 13,703.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,313.91 : 25,273.21 = 9,930.41 : x
  2. Step 2: Convert to fraction form
    18,313.91/25,273.21 = 9,930.41/x
  3. Step 3: Cross multiply
    18,313.91x = 25,273.21 × 9,930.41
  4. Step 4: Simplify right side
    18,313.91x = 250,973,337.32
  5. Step 5: Solve for x
    x = 250,973,337.32/18,313.91
  6. Step 6: Final answer
    x = 13,703.97

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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.