Home / 8,456.94-11,670.90-5,619.42

Finding the Fourth Proportional to 8,456.94, 11,670.90 and 5,619.42

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Solution

The fourth proportional to 8,456.94, 11,670.90 and 5,619.42 is: 7,755.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,456.94 : 11,670.90 = 5,619.42 : x
  2. Step 2: Convert to fraction form
    8,456.94/11,670.90 = 5,619.42/x
  3. Step 3: Cross multiply
    8,456.94x = 11,670.90 × 5,619.42
  4. Step 4: Simplify right side
    8,456.94x = 65,583,688.88
  5. Step 5: Solve for x
    x = 65,583,688.88/8,456.94
  6. Step 6: Final answer
    x = 7,755.01

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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.