Home / 15,623.76-21,561.30-8,550.18

Finding the Fourth Proportional to 15,623.76, 21,561.30 and 8,550.18

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Solution

The fourth proportional to 15,623.76, 21,561.30 and 8,550.18 is: 11,799.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,623.76 : 21,561.30 = 8,550.18 : x
  2. Step 2: Convert to fraction form
    15,623.76/21,561.30 = 8,550.18/x
  3. Step 3: Cross multiply
    15,623.76x = 21,561.30 × 8,550.18
  4. Step 4: Simplify right side
    15,623.76x = 184,352,996.03
  5. Step 5: Solve for x
    x = 184,352,996.03/15,623.76
  6. Step 6: Final answer
    x = 11,799.53

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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.