Home / 11,776.29-16,245.24-7,742.57

Finding the Fourth Proportional to 11,776.29, 16,245.24 and 7,742.57

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Solution

The fourth proportional to 11,776.29, 16,245.24 and 7,742.57 is: 10,680.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,776.29 : 16,245.24 = 7,742.57 : x
  2. Step 2: Convert to fraction form
    11,776.29/16,245.24 = 7,742.57/x
  3. Step 3: Cross multiply
    11,776.29x = 16,245.24 × 7,742.57
  4. Step 4: Simplify right side
    11,776.29x = 125,779,826.64
  5. Step 5: Solve for x
    x = 125,779,826.64/11,776.29
  6. Step 6: Final answer
    x = 10,680.77

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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.