Home / 8,251.80-12,387.30-4,968.60

Finding the Fourth Proportional to 8,251.80, 12,387.30 and 4,968.60

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Solution

The fourth proportional to 8,251.80, 12,387.30 and 4,968.60 is: 7,458.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,251.80 : 12,387.30 = 4,968.60 : x
  2. Step 2: Convert to fraction form
    8,251.80/12,387.30 = 4,968.60/x
  3. Step 3: Cross multiply
    8,251.80x = 12,387.30 × 4,968.60
  4. Step 4: Simplify right side
    8,251.80x = 61,547,538.78
  5. Step 5: Solve for x
    x = 61,547,538.78/8,251.80
  6. Step 6: Final answer
    x = 7,458.68

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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.