Home / 15,170.39-20,933.40-8,795.66

Finding the Fourth Proportional to 15,170.39, 20,933.40 and 8,795.66

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Solution

The fourth proportional to 15,170.39, 20,933.40 and 8,795.66 is: 12,137.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,170.39 : 20,933.40 = 8,795.66 : x
  2. Step 2: Convert to fraction form
    15,170.39/20,933.40 = 8,795.66/x
  3. Step 3: Cross multiply
    15,170.39x = 20,933.40 × 8,795.66
  4. Step 4: Simplify right side
    15,170.39x = 184,122,997.36
  5. Step 5: Solve for x
    x = 184,122,997.36/15,170.39
  6. Step 6: Final answer
    x = 12,137.00

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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.