Home / 15,824.43-21,837.20-8,749.89

Finding the Fourth Proportional to 15,824.43, 21,837.20 and 8,749.89

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Solution

The fourth proportional to 15,824.43, 21,837.20 and 8,749.89 is: 12,074.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,824.43 : 21,837.20 = 8,749.89 : x
  2. Step 2: Convert to fraction form
    15,824.43/21,837.20 = 8,749.89/x
  3. Step 3: Cross multiply
    15,824.43x = 21,837.20 × 8,749.89
  4. Step 4: Simplify right side
    15,824.43x = 191,073,054.16
  5. Step 5: Solve for x
    x = 191,073,054.16/15,824.43
  6. Step 6: Final answer
    x = 12,074.56

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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.