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Finding the Fourth Proportional to 15,614.72, 23,410.54 and 8,107.51

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Solution

The fourth proportional to 15,614.72, 23,410.54 and 8,107.51 is: 12,155.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,614.72 : 23,410.54 = 8,107.51 : x
  2. Step 2: Convert to fraction form
    15,614.72/23,410.54 = 8,107.51/x
  3. Step 3: Cross multiply
    15,614.72x = 23,410.54 × 8,107.51
  4. Step 4: Simplify right side
    15,614.72x = 189,801,108.36
  5. Step 5: Solve for x
    x = 189,801,108.36/15,614.72
  6. Step 6: Final answer
    x = 12,155.27

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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.