Home / 8,624.39-12,936.02-2,780.51

Finding the Fourth Proportional to 8,624.39, 12,936.02 and 2,780.51

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Solution

The fourth proportional to 8,624.39, 12,936.02 and 2,780.51 is: 4,170.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,624.39 : 12,936.02 = 2,780.51 : x
  2. Step 2: Convert to fraction form
    8,624.39/12,936.02 = 2,780.51/x
  3. Step 3: Cross multiply
    8,624.39x = 12,936.02 × 2,780.51
  4. Step 4: Simplify right side
    8,624.39x = 35,968,654.39
  5. Step 5: Solve for x
    x = 35,968,654.39/8,624.39
  6. Step 6: Final answer
    x = 4,170.58

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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.