Home / 8,191.14-12,272.02-4,979.60

Finding the Fourth Proportional to 8,191.14, 12,272.02 and 4,979.60

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Solution

The fourth proportional to 8,191.14, 12,272.02 and 4,979.60 is: 7,460.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,191.14 : 12,272.02 = 4,979.60 : x
  2. Step 2: Convert to fraction form
    8,191.14/12,272.02 = 4,979.60/x
  3. Step 3: Cross multiply
    8,191.14x = 12,272.02 × 4,979.60
  4. Step 4: Simplify right side
    8,191.14x = 61,109,750.79
  5. Step 5: Solve for x
    x = 61,109,750.79/8,191.14
  6. Step 6: Final answer
    x = 7,460.47

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1.5x scale

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.