Home / 26,131.47-39,199.80-8,357.67

Finding the Fourth Proportional to 26,131.47, 39,199.80 and 8,357.67

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Solution

The fourth proportional to 26,131.47, 39,199.80 and 8,357.67 is: 12,537.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,131.47 : 39,199.80 = 8,357.67 : x
  2. Step 2: Convert to fraction form
    26,131.47/39,199.80 = 8,357.67/x
  3. Step 3: Cross multiply
    26,131.47x = 39,199.80 × 8,357.67
  4. Step 4: Simplify right side
    26,131.47x = 327,618,796.47
  5. Step 5: Solve for x
    x = 327,618,796.47/26,131.47
  6. Step 6: Final answer
    x = 12,537.33

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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.