Home / 8,390.28-11,568.96-5,361.27

Finding the Fourth Proportional to 8,390.28, 11,568.96 and 5,361.27

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Solution

The fourth proportional to 8,390.28, 11,568.96 and 5,361.27 is: 7,392.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.28 : 11,568.96 = 5,361.27 : x
  2. Step 2: Convert to fraction form
    8,390.28/11,568.96 = 5,361.27/x
  3. Step 3: Cross multiply
    8,390.28x = 11,568.96 × 5,361.27
  4. Step 4: Simplify right side
    8,390.28x = 62,024,318.18
  5. Step 5: Solve for x
    x = 62,024,318.18/8,390.28
  6. Step 6: Final answer
    x = 7,392.40

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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.