Home / 11,313.19-15,613.73-6,600.61

Finding the Fourth Proportional to 11,313.19, 15,613.73 and 6,600.61

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Solution

The fourth proportional to 11,313.19, 15,613.73 and 6,600.61 is: 9,109.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.19 : 15,613.73 = 6,600.61 : x
  2. Step 2: Convert to fraction form
    11,313.19/15,613.73 = 6,600.61/x
  3. Step 3: Cross multiply
    11,313.19x = 15,613.73 × 6,600.61
  4. Step 4: Simplify right side
    11,313.19x = 103,060,142.38
  5. Step 5: Solve for x
    x = 103,060,142.38/11,313.19
  6. Step 6: Final answer
    x = 9,109.73

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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.