Home / 18,363.24-25,341.06-9,979.56

Finding the Fourth Proportional to 18,363.24, 25,341.06 and 9,979.56

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Solution

The fourth proportional to 18,363.24, 25,341.06 and 9,979.56 is: 13,771.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,363.24 : 25,341.06 = 9,979.56 : x
  2. Step 2: Convert to fraction form
    18,363.24/25,341.06 = 9,979.56/x
  3. Step 3: Cross multiply
    18,363.24x = 25,341.06 × 9,979.56
  4. Step 4: Simplify right side
    18,363.24x = 252,892,628.73
  5. Step 5: Solve for x
    x = 252,892,628.73/18,363.24
  6. Step 6: Final answer
    x = 13,771.68

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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.