Home / 11,315.94-15,615.87-6,600.96

Finding the Fourth Proportional to 11,315.94, 15,615.87 and 6,600.96

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Solution

The fourth proportional to 11,315.94, 15,615.87 and 6,600.96 is: 9,109.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,315.94 : 15,615.87 = 6,600.96 : x
  2. Step 2: Convert to fraction form
    11,315.94/15,615.87 = 6,600.96/x
  3. Step 3: Cross multiply
    11,315.94x = 15,615.87 × 6,600.96
  4. Step 4: Simplify right side
    11,315.94x = 103,079,733.24
  5. Step 5: Solve for x
    x = 103,079,733.24/11,315.94
  6. Step 6: Final answer
    x = 9,109.25

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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.