Home / 11,115.73-15,345.29-8,592.14

Finding the Fourth Proportional to 11,115.73, 15,345.29 and 8,592.14

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Solution

The fourth proportional to 11,115.73, 15,345.29 and 8,592.14 is: 11,861.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.73 : 15,345.29 = 8,592.14 : x
  2. Step 2: Convert to fraction form
    11,115.73/15,345.29 = 8,592.14/x
  3. Step 3: Cross multiply
    11,115.73x = 15,345.29 × 8,592.14
  4. Step 4: Simplify right side
    11,115.73x = 131,848,880.02
  5. Step 5: Solve for x
    x = 131,848,880.02/11,115.73
  6. Step 6: Final answer
    x = 11,861.47

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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.