Home / 10,154.82-15,221.45-4,886.54

Finding the Fourth Proportional to 10,154.82, 15,221.45 and 4,886.54

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Solution

The fourth proportional to 10,154.82, 15,221.45 and 4,886.54 is: 7,324.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,154.82 : 15,221.45 = 4,886.54 : x
  2. Step 2: Convert to fraction form
    10,154.82/15,221.45 = 4,886.54/x
  3. Step 3: Cross multiply
    10,154.82x = 15,221.45 × 4,886.54
  4. Step 4: Simplify right side
    10,154.82x = 74,380,303.09
  5. Step 5: Solve for x
    x = 74,380,303.09/10,154.82
  6. Step 6: Final answer
    x = 7,324.63

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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.