Home / 14,509.73-20,027.61-9,405.07

Finding the Fourth Proportional to 14,509.73, 20,027.61 and 9,405.07

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Solution

The fourth proportional to 14,509.73, 20,027.61 and 9,405.07 is: 12,981.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,509.73 : 20,027.61 = 9,405.07 : x
  2. Step 2: Convert to fraction form
    14,509.73/20,027.61 = 9,405.07/x
  3. Step 3: Cross multiply
    14,509.73x = 20,027.61 × 9,405.07
  4. Step 4: Simplify right side
    14,509.73x = 188,361,023.91
  5. Step 5: Solve for x
    x = 188,361,023.91/14,509.73
  6. Step 6: Final answer
    x = 12,981.71

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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.