Home / 9,811.05-13,538.67-5,334.75

Finding the Fourth Proportional to 9,811.05, 13,538.67 and 5,334.75

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Solution

The fourth proportional to 9,811.05, 13,538.67 and 5,334.75 is: 7,361.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,811.05 : 13,538.67 = 5,334.75 : x
  2. Step 2: Convert to fraction form
    9,811.05/13,538.67 = 5,334.75/x
  3. Step 3: Cross multiply
    9,811.05x = 13,538.67 × 5,334.75
  4. Step 4: Simplify right side
    9,811.05x = 72,225,419.78
  5. Step 5: Solve for x
    x = 72,225,419.78/9,811.05
  6. Step 6: Final answer
    x = 7,361.64

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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.