Home / 11,423.28-15,790.72-10,958.16

Finding the Fourth Proportional to 11,423.28, 15,790.72 and 10,958.16

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Solution

The fourth proportional to 11,423.28, 15,790.72 and 10,958.16 is: 15,147.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,423.28 : 15,790.72 = 10,958.16 : x
  2. Step 2: Convert to fraction form
    11,423.28/15,790.72 = 10,958.16/x
  3. Step 3: Cross multiply
    11,423.28x = 15,790.72 × 10,958.16
  4. Step 4: Simplify right side
    11,423.28x = 173,037,236.28
  5. Step 5: Solve for x
    x = 173,037,236.28/11,423.28
  6. Step 6: Final answer
    x = 15,147.77

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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.