Home / 8,976.55-12,387.47-4,997.74

Finding the Fourth Proportional to 8,976.55, 12,387.47 and 4,997.74

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Solution

The fourth proportional to 8,976.55, 12,387.47 and 4,997.74 is: 6,896.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.55 : 12,387.47 = 4,997.74 : x
  2. Step 2: Convert to fraction form
    8,976.55/12,387.47 = 4,997.74/x
  3. Step 3: Cross multiply
    8,976.55x = 12,387.47 × 4,997.74
  4. Step 4: Simplify right side
    8,976.55x = 61,909,329.33
  5. Step 5: Solve for x
    x = 61,909,329.33/8,976.55
  6. Step 6: Final answer
    x = 6,896.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.