Home / 14,469.28-19,969.68-9,509.92

Finding the Fourth Proportional to 14,469.28, 19,969.68 and 9,509.92

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Solution

The fourth proportional to 14,469.28, 19,969.68 and 9,509.92 is: 13,125.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,469.28 : 19,969.68 = 9,509.92 : x
  2. Step 2: Convert to fraction form
    14,469.28/19,969.68 = 9,509.92/x
  3. Step 3: Cross multiply
    14,469.28x = 19,969.68 × 9,509.92
  4. Step 4: Simplify right side
    14,469.28x = 189,910,059.23
  5. Step 5: Solve for x
    x = 189,910,059.23/14,469.28
  6. Step 6: Final answer
    x = 13,125.05

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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.