Home / 11,311.37-15,609.72-6,275.69

Finding the Fourth Proportional to 11,311.37, 15,609.72 and 6,275.69

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Solution

The fourth proportional to 11,311.37, 15,609.72 and 6,275.69 is: 8,660.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311.37 : 15,609.72 = 6,275.69 : x
  2. Step 2: Convert to fraction form
    11,311.37/15,609.72 = 6,275.69/x
  3. Step 3: Cross multiply
    11,311.37x = 15,609.72 × 6,275.69
  4. Step 4: Simplify right side
    11,311.37x = 97,961,685.66
  5. Step 5: Solve for x
    x = 97,961,685.66/11,311.37
  6. Step 6: Final answer
    x = 8,660.47

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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.