Home / 9,687.05-13,361.76-5,705.36

Finding the Fourth Proportional to 9,687.05, 13,361.76 and 5,705.36

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Solution

The fourth proportional to 9,687.05, 13,361.76 and 5,705.36 is: 7,869.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,687.05 : 13,361.76 = 5,705.36 : x
  2. Step 2: Convert to fraction form
    9,687.05/13,361.76 = 5,705.36/x
  3. Step 3: Cross multiply
    9,687.05x = 13,361.76 × 5,705.36
  4. Step 4: Simplify right side
    9,687.05x = 76,233,584.22
  5. Step 5: Solve for x
    x = 76,233,584.22/9,687.05
  6. Step 6: Final answer
    x = 7,869.64

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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.