Home / 14,129.81-19,499.27-8,161.34

Finding the Fourth Proportional to 14,129.81, 19,499.27 and 8,161.34

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Solution

The fourth proportional to 14,129.81, 19,499.27 and 8,161.34 is: 11,262.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129.81 : 19,499.27 = 8,161.34 : x
  2. Step 2: Convert to fraction form
    14,129.81/19,499.27 = 8,161.34/x
  3. Step 3: Cross multiply
    14,129.81x = 19,499.27 × 8,161.34
  4. Step 4: Simplify right side
    14,129.81x = 159,140,143.60
  5. Step 5: Solve for x
    x = 159,140,143.60/14,129.81
  6. Step 6: Final answer
    x = 11,262.72

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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.