Home / 8,568.20-12,836.10-5,101.40

Finding the Fourth Proportional to 8,568.20, 12,836.10 and 5,101.40

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Solution

The fourth proportional to 8,568.20, 12,836.10 and 5,101.40 is: 7,642.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,568.20 : 12,836.10 = 5,101.40 : x
  2. Step 2: Convert to fraction form
    8,568.20/12,836.10 = 5,101.40/x
  3. Step 3: Cross multiply
    8,568.20x = 12,836.10 × 5,101.40
  4. Step 4: Simplify right side
    8,568.20x = 65,482,080.54
  5. Step 5: Solve for x
    x = 65,482,080.54/8,568.20
  6. Step 6: Final answer
    x = 7,642.45

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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.