Home / 12,851.55-19,272.89-8,716.77

Finding the Fourth Proportional to 12,851.55, 19,272.89 and 8,716.77

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Solution

The fourth proportional to 12,851.55, 19,272.89 and 8,716.77 is: 13,072.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,851.55 : 19,272.89 = 8,716.77 : x
  2. Step 2: Convert to fraction form
    12,851.55/19,272.89 = 8,716.77/x
  3. Step 3: Cross multiply
    12,851.55x = 19,272.89 × 8,716.77
  4. Step 4: Simplify right side
    12,851.55x = 167,997,371.16
  5. Step 5: Solve for x
    x = 167,997,371.16/12,851.55
  6. Step 6: Final answer
    x = 13,072.15

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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.