Home / 11,345.88-15,649.52-6,861.90

Finding the Fourth Proportional to 11,345.88, 15,649.52 and 6,861.90

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Solution

The fourth proportional to 11,345.88, 15,649.52 and 6,861.90 is: 9,464.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.88 : 15,649.52 = 6,861.90 : x
  2. Step 2: Convert to fraction form
    11,345.88/15,649.52 = 6,861.90/x
  3. Step 3: Cross multiply
    11,345.88x = 15,649.52 × 6,861.90
  4. Step 4: Simplify right side
    11,345.88x = 107,385,441.29
  5. Step 5: Solve for x
    x = 107,385,441.29/11,345.88
  6. Step 6: Final answer
    x = 9,464.71

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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.