Home / 14,749.76-20,355.28-8,463.36

Finding the Fourth Proportional to 14,749.76, 20,355.28 and 8,463.36

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Solution

The fourth proportional to 14,749.76, 20,355.28 and 8,463.36 is: 11,679.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,749.76 : 20,355.28 = 8,463.36 : x
  2. Step 2: Convert to fraction form
    14,749.76/20,355.28 = 8,463.36/x
  3. Step 3: Cross multiply
    14,749.76x = 20,355.28 × 8,463.36
  4. Step 4: Simplify right side
    14,749.76x = 172,274,062.54
  5. Step 5: Solve for x
    x = 172,274,062.54/14,749.76
  6. Step 6: Final answer
    x = 11,679.79

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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.