Home / 15,035.82-20,749.98-8,662.74

Finding the Fourth Proportional to 15,035.82, 20,749.98 and 8,662.74

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Solution

The fourth proportional to 15,035.82, 20,749.98 and 8,662.74 is: 11,954.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,035.82 : 20,749.98 = 8,662.74 : x
  2. Step 2: Convert to fraction form
    15,035.82/20,749.98 = 8,662.74/x
  3. Step 3: Cross multiply
    15,035.82x = 20,749.98 × 8,662.74
  4. Step 4: Simplify right side
    15,035.82x = 179,751,681.75
  5. Step 5: Solve for x
    x = 179,751,681.75/15,035.82
  6. Step 6: Final answer
    x = 11,954.90

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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.