Home / 9,728.22-13,426.14-5,535.66

Finding the Fourth Proportional to 9,728.22, 13,426.14 and 5,535.66

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Solution

The fourth proportional to 9,728.22, 13,426.14 and 5,535.66 is: 7,639.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,728.22 : 13,426.14 = 5,535.66 : x
  2. Step 2: Convert to fraction form
    9,728.22/13,426.14 = 5,535.66/x
  3. Step 3: Cross multiply
    9,728.22x = 13,426.14 × 5,535.66
  4. Step 4: Simplify right side
    9,728.22x = 74,322,546.15
  5. Step 5: Solve for x
    x = 74,322,546.15/9,728.22
  6. Step 6: Final answer
    x = 7,639.89

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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.