Home / 15,797.20-21,799.26-9,828.68

Finding the Fourth Proportional to 15,797.20, 21,799.26 and 9,828.68

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Solution

The fourth proportional to 15,797.20, 21,799.26 and 9,828.68 is: 13,563.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,797.20 : 21,799.26 = 9,828.68 : x
  2. Step 2: Convert to fraction form
    15,797.20/21,799.26 = 9,828.68/x
  3. Step 3: Cross multiply
    15,797.20x = 21,799.26 × 9,828.68
  4. Step 4: Simplify right side
    15,797.20x = 214,257,950.78
  5. Step 5: Solve for x
    x = 214,257,950.78/15,797.20
  6. Step 6: Final answer
    x = 13,563.03

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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.