Home / 10,278.29-14,183.05-8,158.94

Finding the Fourth Proportional to 10,278.29, 14,183.05 and 8,158.94

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Solution

The fourth proportional to 10,278.29, 14,183.05 and 8,158.94 is: 11,258.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.29 : 14,183.05 = 8,158.94 : x
  2. Step 2: Convert to fraction form
    10,278.29/14,183.05 = 8,158.94/x
  3. Step 3: Cross multiply
    10,278.29x = 14,183.05 × 8,158.94
  4. Step 4: Simplify right side
    10,278.29x = 115,718,669.03
  5. Step 5: Solve for x
    x = 115,718,669.03/10,278.29
  6. Step 6: Final answer
    x = 11,258.56

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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.