Home / 13,568.58-20,360.21-5,671.79

Finding the Fourth Proportional to 13,568.58, 20,360.21 and 5,671.79

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Solution

The fourth proportional to 13,568.58, 20,360.21 and 5,671.79 is: 8,510.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,568.58 : 20,360.21 = 5,671.79 : x
  2. Step 2: Convert to fraction form
    13,568.58/20,360.21 = 5,671.79/x
  3. Step 3: Cross multiply
    13,568.58x = 20,360.21 × 5,671.79
  4. Step 4: Simplify right side
    13,568.58x = 115,478,705.32
  5. Step 5: Solve for x
    x = 115,478,705.32/13,568.58
  6. Step 6: Final answer
    x = 8,510.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.