Home / 14,143.72-19,516.16-8,174.24

Finding the Fourth Proportional to 14,143.72, 19,516.16 and 8,174.24

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Solution

The fourth proportional to 14,143.72, 19,516.16 and 8,174.24 is: 11,279.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.72 : 19,516.16 = 8,174.24 : x
  2. Step 2: Convert to fraction form
    14,143.72/19,516.16 = 8,174.24/x
  3. Step 3: Cross multiply
    14,143.72x = 19,516.16 × 8,174.24
  4. Step 4: Simplify right side
    14,143.72x = 159,529,678.14
  5. Step 5: Solve for x
    x = 159,529,678.14/14,143.72
  6. Step 6: Final answer
    x = 11,279.19

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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.