Home / 12,975.05-17,867.86-11,272.77

Finding the Fourth Proportional to 12,975.05, 17,867.86 and 11,272.77

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Solution

The fourth proportional to 12,975.05, 17,867.86 and 11,272.77 is: 15,523.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.05 : 17,867.86 = 11,272.77 : x
  2. Step 2: Convert to fraction form
    12,975.05/17,867.86 = 11,272.77/x
  3. Step 3: Cross multiply
    12,975.05x = 17,867.86 × 11,272.77
  4. Step 4: Simplify right side
    12,975.05x = 201,420,276.17
  5. Step 5: Solve for x
    x = 201,420,276.17/12,975.05
  6. Step 6: Final answer
    x = 15,523.66

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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.