Home / 8,051.49-11,108.78-5,218.98

Finding the Fourth Proportional to 8,051.49, 11,108.78 and 5,218.98

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Solution

The fourth proportional to 8,051.49, 11,108.78 and 5,218.98 is: 7,200.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,051.49 : 11,108.78 = 5,218.98 : x
  2. Step 2: Convert to fraction form
    8,051.49/11,108.78 = 5,218.98/x
  3. Step 3: Cross multiply
    8,051.49x = 11,108.78 × 5,218.98
  4. Step 4: Simplify right side
    8,051.49x = 57,976,500.64
  5. Step 5: Solve for x
    x = 57,976,500.64/8,051.49
  6. Step 6: Final answer
    x = 7,200.72

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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.