Home / 14,234.70-19,622.88-9,129.72

Finding the Fourth Proportional to 14,234.70, 19,622.88 and 9,129.72

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Solution

The fourth proportional to 14,234.70, 19,622.88 and 9,129.72 is: 12,585.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,234.70 : 19,622.88 = 9,129.72 : x
  2. Step 2: Convert to fraction form
    14,234.70/19,622.88 = 9,129.72/x
  3. Step 3: Cross multiply
    14,234.70x = 19,622.88 × 9,129.72
  4. Step 4: Simplify right side
    14,234.70x = 179,151,399.99
  5. Step 5: Solve for x
    x = 179,151,399.99/14,234.70
  6. Step 6: Final answer
    x = 12,585.54

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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.