Home / 15,653.30-21,609.87-10,644.26

Finding the Fourth Proportional to 15,653.30, 21,609.87 and 10,644.26

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Solution

The fourth proportional to 15,653.30, 21,609.87 and 10,644.26 is: 14,694.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,653.30 : 21,609.87 = 10,644.26 : x
  2. Step 2: Convert to fraction form
    15,653.30/21,609.87 = 10,644.26/x
  3. Step 3: Cross multiply
    15,653.30x = 21,609.87 × 10,644.26
  4. Step 4: Simplify right side
    15,653.30x = 230,021,074.85
  5. Step 5: Solve for x
    x = 230,021,074.85/15,653.30
  6. Step 6: Final answer
    x = 14,694.73

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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.