Home / 11,728.28-16,185.08-7,536.53

Finding the Fourth Proportional to 11,728.28, 16,185.08 and 7,536.53

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Solution

The fourth proportional to 11,728.28, 16,185.08 and 7,536.53 is: 10,400.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,728.28 : 16,185.08 = 7,536.53 : x
  2. Step 2: Convert to fraction form
    11,728.28/16,185.08 = 7,536.53/x
  3. Step 3: Cross multiply
    11,728.28x = 16,185.08 × 7,536.53
  4. Step 4: Simplify right side
    11,728.28x = 121,979,340.97
  5. Step 5: Solve for x
    x = 121,979,340.97/11,728.28
  6. Step 6: Final answer
    x = 10,400.45

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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.