Home / 19,455.66-26,859.87-12,850.86

Finding the Fourth Proportional to 19,455.66, 26,859.87 and 12,850.86

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Solution

The fourth proportional to 19,455.66, 26,859.87 and 12,850.86 is: 17,741.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,455.66 : 26,859.87 = 12,850.86 : x
  2. Step 2: Convert to fraction form
    19,455.66/26,859.87 = 12,850.86/x
  3. Step 3: Cross multiply
    19,455.66x = 26,859.87 × 12,850.86
  4. Step 4: Simplify right side
    19,455.66x = 345,172,428.99
  5. Step 5: Solve for x
    x = 345,172,428.99/19,455.66
  6. Step 6: Final answer
    x = 17,741.49

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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.