Home / 8,013.80-11,057.07-4,991.30

Finding the Fourth Proportional to 8,013.80, 11,057.07 and 4,991.30

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Solution

The fourth proportional to 8,013.80, 11,057.07 and 4,991.30 is: 6,886.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,013.80 : 11,057.07 = 4,991.30 : x
  2. Step 2: Convert to fraction form
    8,013.80/11,057.07 = 4,991.30/x
  3. Step 3: Cross multiply
    8,013.80x = 11,057.07 × 4,991.30
  4. Step 4: Simplify right side
    8,013.80x = 55,189,153.49
  5. Step 5: Solve for x
    x = 55,189,153.49/8,013.80
  6. Step 6: Final answer
    x = 6,886.76

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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.