Home / 14,129.64-19,500.62-8,161.29

Finding the Fourth Proportional to 14,129.64, 19,500.62 and 8,161.29

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Solution

The fourth proportional to 14,129.64, 19,500.62 and 8,161.29 is: 11,263.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129.64 : 19,500.62 = 8,161.29 : x
  2. Step 2: Convert to fraction form
    14,129.64/19,500.62 = 8,161.29/x
  3. Step 3: Cross multiply
    14,129.64x = 19,500.62 × 8,161.29
  4. Step 4: Simplify right side
    14,129.64x = 159,150,215.00
  5. Step 5: Solve for x
    x = 159,150,215.00/14,129.64
  6. Step 6: Final answer
    x = 11,263.57

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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.