Home / 14,811.76-20,440.24-8,097.28

Finding the Fourth Proportional to 14,811.76, 20,440.24 and 8,097.28

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Solution

The fourth proportional to 14,811.76, 20,440.24 and 8,097.28 is: 11,174.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,811.76 : 20,440.24 = 8,097.28 : x
  2. Step 2: Convert to fraction form
    14,811.76/20,440.24 = 8,097.28/x
  3. Step 3: Cross multiply
    14,811.76x = 20,440.24 × 8,097.28
  4. Step 4: Simplify right side
    14,811.76x = 165,510,346.55
  5. Step 5: Solve for x
    x = 165,510,346.55/14,811.76
  6. Step 6: Final answer
    x = 11,174.25

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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.