Home / 11,815.41-17,720.67-5,572.74

Finding the Fourth Proportional to 11,815.41, 17,720.67 and 5,572.74

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Solution

The fourth proportional to 11,815.41, 17,720.67 and 5,572.74 is: 8,357.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,815.41 : 17,720.67 = 5,572.74 : x
  2. Step 2: Convert to fraction form
    11,815.41/17,720.67 = 5,572.74/x
  3. Step 3: Cross multiply
    11,815.41x = 17,720.67 × 5,572.74
  4. Step 4: Simplify right side
    11,815.41x = 98,752,686.54
  5. Step 5: Solve for x
    x = 98,752,686.54/11,815.41
  6. Step 6: Final answer
    x = 8,357.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.