Home / 26,157.09-39,243.81-8,639.22

Finding the Fourth Proportional to 26,157.09, 39,243.81 and 8,639.22

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Solution

The fourth proportional to 26,157.09, 39,243.81 and 8,639.22 is: 12,961.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,157.09 : 39,243.81 = 8,639.22 : x
  2. Step 2: Convert to fraction form
    26,157.09/39,243.81 = 8,639.22/x
  3. Step 3: Cross multiply
    26,157.09x = 39,243.81 × 8,639.22
  4. Step 4: Simplify right side
    26,157.09x = 339,035,908.23
  5. Step 5: Solve for x
    x = 339,035,908.23/26,157.09
  6. Step 6: Final answer
    x = 12,961.53

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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.