Home / 8,173.81-11,266.38-5,780.70

Finding the Fourth Proportional to 8,173.81, 11,266.38 and 5,780.70

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Solution

The fourth proportional to 8,173.81, 11,266.38 and 5,780.70 is: 7,967.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,173.81 : 11,266.38 = 5,780.70 : x
  2. Step 2: Convert to fraction form
    8,173.81/11,266.38 = 5,780.70/x
  3. Step 3: Cross multiply
    8,173.81x = 11,266.38 × 5,780.70
  4. Step 4: Simplify right side
    8,173.81x = 65,127,562.87
  5. Step 5: Solve for x
    x = 65,127,562.87/8,173.81
  6. Step 6: Final answer
    x = 7,967.83

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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.