Home / 14,501.42-20,013.37-8,129.09

Finding the Fourth Proportional to 14,501.42, 20,013.37 and 8,129.09

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Solution

The fourth proportional to 14,501.42, 20,013.37 and 8,129.09 is: 11,218.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,501.42 : 20,013.37 = 8,129.09 : x
  2. Step 2: Convert to fraction form
    14,501.42/20,013.37 = 8,129.09/x
  3. Step 3: Cross multiply
    14,501.42x = 20,013.37 × 8,129.09
  4. Step 4: Simplify right side
    14,501.42x = 162,690,485.93
  5. Step 5: Solve for x
    x = 162,690,485.93/14,501.42
  6. Step 6: Final answer
    x = 11,218.93

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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.