Home / 15,221.93-22,809.20-7,315.92

Finding the Fourth Proportional to 15,221.93, 22,809.20 and 7,315.92

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Solution

The fourth proportional to 15,221.93, 22,809.20 and 7,315.92 is: 10,962.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,221.93 : 22,809.20 = 7,315.92 : x
  2. Step 2: Convert to fraction form
    15,221.93/22,809.20 = 7,315.92/x
  3. Step 3: Cross multiply
    15,221.93x = 22,809.20 × 7,315.92
  4. Step 4: Simplify right side
    15,221.93x = 166,870,245.88
  5. Step 5: Solve for x
    x = 166,870,245.88/15,221.93
  6. Step 6: Final answer
    x = 10,962.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.