Home / 14,619.34-20,174.70-8,331.76

Finding the Fourth Proportional to 14,619.34, 20,174.70 and 8,331.76

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Solution

The fourth proportional to 14,619.34, 20,174.70 and 8,331.76 is: 11,497.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,619.34 : 20,174.70 = 8,331.76 : x
  2. Step 2: Convert to fraction form
    14,619.34/20,174.70 = 8,331.76/x
  3. Step 3: Cross multiply
    14,619.34x = 20,174.70 × 8,331.76
  4. Step 4: Simplify right side
    14,619.34x = 168,090,758.47
  5. Step 5: Solve for x
    x = 168,090,758.47/14,619.34
  6. Step 6: Final answer
    x = 11,497.83

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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.