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Finding the Fourth Proportional to 11,242.92, 16,873.56 and 7,959.20

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Solution

The fourth proportional to 11,242.92, 16,873.56 and 7,959.20 is: 11,945.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,242.92 : 16,873.56 = 7,959.20 : x
  2. Step 2: Convert to fraction form
    11,242.92/16,873.56 = 7,959.20/x
  3. Step 3: Cross multiply
    11,242.92x = 16,873.56 × 7,959.20
  4. Step 4: Simplify right side
    11,242.92x = 134,300,038.75
  5. Step 5: Solve for x
    x = 134,300,038.75/11,242.92
  6. Step 6: Final answer
    x = 11,945.30

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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.