Home / 15,485.62-21,371.96-9,197.99

Finding the Fourth Proportional to 15,485.62, 21,371.96 and 9,197.99

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Solution

The fourth proportional to 15,485.62, 21,371.96 and 9,197.99 is: 12,694.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,485.62 : 21,371.96 = 9,197.99 : x
  2. Step 2: Convert to fraction form
    15,485.62/21,371.96 = 9,197.99/x
  3. Step 3: Cross multiply
    15,485.62x = 21,371.96 × 9,197.99
  4. Step 4: Simplify right side
    15,485.62x = 196,579,074.36
  5. Step 5: Solve for x
    x = 196,579,074.36/15,485.62
  6. Step 6: Final answer
    x = 12,694.30

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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.