Home / 15,589.24-21,497.78-9,619.64

Finding the Fourth Proportional to 15,589.24, 21,497.78 and 9,619.64

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Solution

The fourth proportional to 15,589.24, 21,497.78 and 9,619.64 is: 13,265.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,589.24 : 21,497.78 = 9,619.64 : x
  2. Step 2: Convert to fraction form
    15,589.24/21,497.78 = 9,619.64/x
  3. Step 3: Cross multiply
    15,589.24x = 21,497.78 × 9,619.64
  4. Step 4: Simplify right side
    15,589.24x = 206,800,748.81
  5. Step 5: Solve for x
    x = 206,800,748.81/15,589.24
  6. Step 6: Final answer
    x = 13,265.61

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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.