Home / 11,092.41-15,303.57-7,115.72

Finding the Fourth Proportional to 11,092.41, 15,303.57 and 7,115.72

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Solution

The fourth proportional to 11,092.41, 15,303.57 and 7,115.72 is: 9,817.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,092.41 : 15,303.57 = 7,115.72 : x
  2. Step 2: Convert to fraction form
    11,092.41/15,303.57 = 7,115.72/x
  3. Step 3: Cross multiply
    11,092.41x = 15,303.57 × 7,115.72
  4. Step 4: Simplify right side
    11,092.41x = 108,895,815.92
  5. Step 5: Solve for x
    x = 108,895,815.92/11,092.41
  6. Step 6: Final answer
    x = 9,817.15

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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.