Home / 11,481.28-15,823.28-8,962.08

Finding the Fourth Proportional to 11,481.28, 15,823.28 and 8,962.08

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Solution

The fourth proportional to 11,481.28, 15,823.28 and 8,962.08 is: 12,351.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,481.28 : 15,823.28 = 8,962.08 : x
  2. Step 2: Convert to fraction form
    11,481.28/15,823.28 = 8,962.08/x
  3. Step 3: Cross multiply
    11,481.28x = 15,823.28 × 8,962.08
  4. Step 4: Simplify right side
    11,481.28x = 141,809,501.22
  5. Step 5: Solve for x
    x = 141,809,501.22/11,481.28
  6. Step 6: Final answer
    x = 12,351.37

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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.